Finding the Fourth Proportional to 679,963.12, 938,366.62 and 374,047.36
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Solution
The fourth proportional to 679,963.12, 938,366.62 and 374,047.36 is: 516,194.99
Step by Step Solution
- Step 1: Write the proportion equation
679,963.12 : 938,366.62 = 374,047.36 : x - Step 2: Convert to fraction form
679,963.12/938,366.62 = 374,047.36/x - Step 3: Cross multiply
679,963.12x = 938,366.62 × 374,047.36 - Step 4: Simplify right side
679,963.12x = 350,993,560,442.00 - Step 5: Solve for x
x = 350,993,560,442.00/679,963.12 - Step 6: Final answer
x = 516,194.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.