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Finding the Fourth Proportional to 627,279.72, 940,920.33 and 171,874.85

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Solution

The fourth proportional to 627,279.72, 940,920.33 and 171,874.85 is: 257,812.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,279.72 : 940,920.33 = 171,874.85 : x
  2. Step 2: Convert to fraction form
    627,279.72/940,920.33 = 171,874.85/x
  3. Step 3: Cross multiply
    627,279.72x = 940,920.33 × 171,874.85
  4. Step 4: Simplify right side
    627,279.72x = 161,720,535,876.10
  5. Step 5: Solve for x
    x = 161,720,535,876.10/627,279.72
  6. Step 6: Final answer
    x = 257,812.47

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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.