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Finding the Fourth Proportional to 585,008.10, 877,512.15 and 407,715.30

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Solution

The fourth proportional to 585,008.10, 877,512.15 and 407,715.30 is: 611,572.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,008.10 : 877,512.15 = 407,715.30 : x
  2. Step 2: Convert to fraction form
    585,008.10/877,512.15 = 407,715.30/x
  3. Step 3: Cross multiply
    585,008.10x = 877,512.15 × 407,715.30
  4. Step 4: Simplify right side
    585,008.10x = 357,775,129,490.90
  5. Step 5: Solve for x
    x = 357,775,129,490.90/585,008.10
  6. Step 6: Final answer
    x = 611,572.95

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.