Home / 485,470.26-727,540.38-308,101.73

Finding the Fourth Proportional to 485,470.26, 727,540.38 and 308,101.73

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Solution

The fourth proportional to 485,470.26, 727,540.38 and 308,101.73 is: 461,730.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,470.26 : 727,540.38 = 308,101.73 : x
  2. Step 2: Convert to fraction form
    485,470.26/727,540.38 = 308,101.73/x
  3. Step 3: Cross multiply
    485,470.26x = 727,540.38 × 308,101.73
  4. Step 4: Simplify right side
    485,470.26x = 224,156,446,085.16
  5. Step 5: Solve for x
    x = 224,156,446,085.16/485,470.26
  6. Step 6: Final answer
    x = 461,730.54

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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.