Home / 752,471.48-1,129,076.28-353,144.72

Finding the Fourth Proportional to 752,471.48, 1,129,076.28 and 353,144.72

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Solution

The fourth proportional to 752,471.48, 1,129,076.28 and 353,144.72 is: 529,890.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,471.48 : 1,129,076.28 = 353,144.72 : x
  2. Step 2: Convert to fraction form
    752,471.48/1,129,076.28 = 353,144.72/x
  3. Step 3: Cross multiply
    752,471.48x = 1,129,076.28 × 353,144.72
  4. Step 4: Simplify right side
    752,471.48x = 398,727,329,581.93
  5. Step 5: Solve for x
    x = 398,727,329,581.93/752,471.48
  6. Step 6: Final answer
    x = 529,890.29

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Double scale
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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.