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Finding the Fourth Proportional to 627,645.32, 940,937.42 and 272,392.28

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Solution

The fourth proportional to 627,645.32, 940,937.42 and 272,392.28 is: 408,358.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,645.32 : 940,937.42 = 272,392.28 : x
  2. Step 2: Convert to fraction form
    627,645.32/940,937.42 = 272,392.28/x
  3. Step 3: Cross multiply
    627,645.32x = 940,937.42 × 272,392.28
  4. Step 4: Simplify right side
    627,645.32x = 256,304,085,147.41
  5. Step 5: Solve for x
    x = 256,304,085,147.41/627,645.32
  6. Step 6: Final answer
    x = 408,358.16

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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.