Finding the Fourth Proportional to 704,440.62, 972,128.06 and 402,641.10
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Solution
The fourth proportional to 704,440.62, 972,128.06 and 402,641.10 is: 555,644.72
Step by Step Solution
- Step 1: Write the proportion equation
704,440.62 : 972,128.06 = 402,641.10 : x - Step 2: Convert to fraction form
704,440.62/972,128.06 = 402,641.10/x - Step 3: Cross multiply
704,440.62x = 972,128.06 × 402,641.10 - Step 4: Simplify right side
704,440.62x = 391,418,711,419.27 - Step 5: Solve for x
x = 391,418,711,419.27/704,440.62 - Step 6: Final answer
x = 555,644.72
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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.