Finding the Fourth Proportional to 635,445.61, 876,695.71 and 406,137.13
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Solution
The fourth proportional to 635,445.61, 876,695.71 and 406,137.13 is: 560,329.12
Step by Step Solution
- Step 1: Write the proportion equation
635,445.61 : 876,695.71 = 406,137.13 : x - Step 2: Convert to fraction form
635,445.61/876,695.71 = 406,137.13/x - Step 3: Cross multiply
635,445.61x = 876,695.71 × 406,137.13 - Step 4: Simplify right side
635,445.61x = 356,058,679,542.71 - Step 5: Solve for x
x = 356,058,679,542.71/635,445.61 - Step 6: Final answer
x = 560,329.12
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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.