RATIo AND pRopoRTIoN
fUNCTIoNS
With the Ratio and Proportion keys you
can nd:
• an x value, given a Ratio and y value
• a y value, given a Ratio and x value
• a Ratio, given values for x and y
Ratios and Proportions can be
calculated with or without dimensional
units.
If the Ratio of nitrogen to hydrogen is
1:3, and a sample of ammonia has 1,563
nitrogen atoms, how many hydrogen
atoms are present?
KeYsTrOKe disPlaY
OO
0.
1. Enter the Ratio:
1ga
(x value)
X 1.
3gp
(y value)
Y 3.
2. Show the Ratio:
gh
(X:Y)
1 = 3.0000
3. Enter the known number of
nitrogen atoms:
1563ga
(X)
X 1563.
4. Solve for the unknown number of
hydrogen atoms:
gp
(Y)
Y 4689.0000
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