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Finding the Fourth Proportional to 681,296.46, 940,180.42 and 371,211.97

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Solution

The fourth proportional to 681,296.46, 940,180.42 and 371,211.97 is: 512,267.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,296.46 : 940,180.42 = 371,211.97 : x
  2. Step 2: Convert to fraction form
    681,296.46/940,180.42 = 371,211.97/x
  3. Step 3: Cross multiply
    681,296.46x = 940,180.42 × 371,211.97
  4. Step 4: Simplify right side
    681,296.46x = 349,006,223,895.88
  5. Step 5: Solve for x
    x = 349,006,223,895.88/681,296.46
  6. Step 6: Final answer
    x = 512,267.78

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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.