Home / 1,253,079.20-1,729,250.80-680,119.50

Finding the Fourth Proportional to 1,253,079.20, 1,729,250.80 and 680,119.50

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Solution

The fourth proportional to 1,253,079.20, 1,729,250.80 and 680,119.50 is: 938,565.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,079.20 : 1,729,250.80 = 680,119.50 : x
  2. Step 2: Convert to fraction form
    1,253,079.20/1,729,250.80 = 680,119.50/x
  3. Step 3: Cross multiply
    1,253,079.20x = 1,729,250.80 × 680,119.50
  4. Step 4: Simplify right side
    1,253,079.20x = 1,176,097,189,470.60
  5. Step 5: Solve for x
    x = 1,176,097,189,470.60/1,253,079.20
  6. Step 6: Final answer
    x = 938,565.73

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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.