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Finding the Fourth Proportional to 624,691.84, 862,073.52 and 338,211.88

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Solution

The fourth proportional to 624,691.84, 862,073.52 and 338,211.88 is: 466,731.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,691.84 : 862,073.52 = 338,211.88 : x
  2. Step 2: Convert to fraction form
    624,691.84/862,073.52 = 338,211.88/x
  3. Step 3: Cross multiply
    624,691.84x = 862,073.52 × 338,211.88
  4. Step 4: Simplify right side
    624,691.84x = 291,563,505,897.42
  5. Step 5: Solve for x
    x = 291,563,505,897.42/624,691.84
  6. Step 6: Final answer
    x = 466,731.73

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1.5x scale

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.