Home / 486,839.57-730,251.45-187,385.20

Finding the Fourth Proportional to 486,839.57, 730,251.45 and 187,385.20

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Solution

The fourth proportional to 486,839.57, 730,251.45 and 187,385.20 is: 281,074.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,839.57 : 730,251.45 = 187,385.20 : x
  2. Step 2: Convert to fraction form
    486,839.57/730,251.45 = 187,385.20/x
  3. Step 3: Cross multiply
    486,839.57x = 730,251.45 × 187,385.20
  4. Step 4: Simplify right side
    486,839.57x = 136,838,312,182.91
  5. Step 5: Solve for x
    x = 136,838,312,182.91/486,839.57
  6. Step 6: Final answer
    x = 281,074.76

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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.