Home / 1,253,079.70-1,729,251.60-680,119.90

Finding the Fourth Proportional to 1,253,079.70, 1,729,251.60 and 680,119.90

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Solution

The fourth proportional to 1,253,079.70, 1,729,251.60 and 680,119.90 is: 938,566.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,079.70 : 1,729,251.60 = 680,119.90 : x
  2. Step 2: Convert to fraction form
    1,253,079.70/1,729,251.60 = 680,119.90/x
  3. Step 3: Cross multiply
    1,253,079.70x = 1,729,251.60 × 680,119.90
  4. Step 4: Simplify right side
    1,253,079.70x = 1,176,098,425,266.84
  5. Step 5: Solve for x
    x = 1,176,098,425,266.84/1,253,079.70
  6. Step 6: Final answer
    x = 938,566.34

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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.