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Finding the Fourth Proportional to 521,082.52, 781,088.65 and 295,962.31

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Solution

The fourth proportional to 521,082.52, 781,088.65 and 295,962.31 is: 443,639.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,082.52 : 781,088.65 = 295,962.31 : x
  2. Step 2: Convert to fraction form
    521,082.52/781,088.65 = 295,962.31/x
  3. Step 3: Cross multiply
    521,082.52x = 781,088.65 × 295,962.31
  4. Step 4: Simplify right side
    521,082.52x = 231,172,799,688.97
  5. Step 5: Solve for x
    x = 231,172,799,688.97/521,082.52
  6. Step 6: Final answer
    x = 443,639.52

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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.