Home / 1,253,127.92-1,729,270.20-680,155.80

Finding the Fourth Proportional to 1,253,127.92, 1,729,270.20 and 680,155.80

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Solution

The fourth proportional to 1,253,127.92, 1,729,270.20 and 680,155.80 is: 938,589.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,127.92 : 1,729,270.20 = 680,155.80 : x
  2. Step 2: Convert to fraction form
    1,253,127.92/1,729,270.20 = 680,155.80/x
  3. Step 3: Cross multiply
    1,253,127.92x = 1,729,270.20 × 680,155.80
  4. Step 4: Simplify right side
    1,253,127.92x = 1,176,173,156,297.16
  5. Step 5: Solve for x
    x = 1,176,173,156,297.16/1,253,127.92
  6. Step 6: Final answer
    x = 938,589.86

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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.