Home / 454,039.20-680,767.20-187,905.60

Finding the Fourth Proportional to 454,039.20, 680,767.20 and 187,905.60

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Solution

The fourth proportional to 454,039.20, 680,767.20 and 187,905.60 is: 281,737.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,039.20 : 680,767.20 = 187,905.60 : x
  2. Step 2: Convert to fraction form
    454,039.20/680,767.20 = 187,905.60/x
  3. Step 3: Cross multiply
    454,039.20x = 680,767.20 × 187,905.60
  4. Step 4: Simplify right side
    454,039.20x = 127,919,969,176.32
  5. Step 5: Solve for x
    x = 127,919,969,176.32/454,039.20
  6. Step 6: Final answer
    x = 281,737.72

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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.