Home / 454,051.20-680,785.20-187,917.60

Finding the Fourth Proportional to 454,051.20, 680,785.20 and 187,917.60

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Solution

The fourth proportional to 454,051.20, 680,785.20 and 187,917.60 is: 281,755.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,051.20 : 680,785.20 = 187,917.60 : x
  2. Step 2: Convert to fraction form
    454,051.20/680,785.20 = 187,917.60/x
  3. Step 3: Cross multiply
    454,051.20x = 680,785.20 × 187,917.60
  4. Step 4: Simplify right side
    454,051.20x = 127,931,520,899.52
  5. Step 5: Solve for x
    x = 127,931,520,899.52/454,051.20
  6. Step 6: Final answer
    x = 281,755.72

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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.