Home / 476,101.89-656,917.92-274,781.25

Finding the Fourth Proportional to 476,101.89, 656,917.92 and 274,781.25

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Solution

The fourth proportional to 476,101.89, 656,917.92 and 274,781.25 is: 379,138.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,101.89 : 656,917.92 = 274,781.25 : x
  2. Step 2: Convert to fraction form
    476,101.89/656,917.92 = 274,781.25/x
  3. Step 3: Cross multiply
    476,101.89x = 656,917.92 × 274,781.25
  4. Step 4: Simplify right side
    476,101.89x = 180,508,727,205
  5. Step 5: Solve for x
    x = 180,508,727,205/476,101.89
  6. Step 6: Final answer
    x = 379,138.86

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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.