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Finding the Fourth Proportional to 627,356.57, 940,505.85 and 272,103.03

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Solution

The fourth proportional to 627,356.57, 940,505.85 and 272,103.03 is: 407,925.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,356.57 : 940,505.85 = 272,103.03 : x
  2. Step 2: Convert to fraction form
    627,356.57/940,505.85 = 272,103.03/x
  3. Step 3: Cross multiply
    627,356.57x = 940,505.85 × 272,103.03
  4. Step 4: Simplify right side
    627,356.57x = 255,914,491,517.73
  5. Step 5: Solve for x
    x = 255,914,491,517.73/627,356.57
  6. Step 6: Final answer
    x = 407,925.10

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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.