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Finding the Fourth Proportional to 1,063,755, 1,467,981.90 and 681,781.78

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Solution

The fourth proportional to 1,063,755, 1,467,981.90 and 681,781.78 is: 940,858.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,063,755 : 1,467,981.90 = 681,781.78 : x
  2. Step 2: Convert to fraction form
    1,063,755/1,467,981.90 = 681,781.78/x
  3. Step 3: Cross multiply
    1,063,755x = 1,467,981.90 × 681,781.78
  4. Step 4: Simplify right side
    1,063,755x = 1,000,843,314,624.76
  5. Step 5: Solve for x
    x = 1,000,843,314,624.76/1,063,755
  6. Step 6: Final answer
    x = 940,858.86

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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.