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Finding the Fourth Proportional to 624,597.82, 861,742.95 and 382,627.90

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Solution

The fourth proportional to 624,597.82, 861,742.95 and 382,627.90 is: 527,902.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,597.82 : 861,742.95 = 382,627.90 : x
  2. Step 2: Convert to fraction form
    624,597.82/861,742.95 = 382,627.90/x
  3. Step 3: Cross multiply
    624,597.82x = 861,742.95 × 382,627.90
  4. Step 4: Simplify right side
    624,597.82x = 329,726,895,298.31
  5. Step 5: Solve for x
    x = 329,726,895,298.31/624,597.82
  6. Step 6: Final answer
    x = 527,902.73

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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.