Home / 485,320.41-727,982.46-148,359.78

Finding the Fourth Proportional to 485,320.41, 727,982.46 and 148,359.78

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Solution

The fourth proportional to 485,320.41, 727,982.46 and 148,359.78 is: 222,540.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,320.41 : 727,982.46 = 148,359.78 : x
  2. Step 2: Convert to fraction form
    485,320.41/727,982.46 = 148,359.78/x
  3. Step 3: Cross multiply
    485,320.41x = 727,982.46 × 148,359.78
  4. Step 4: Simplify right side
    485,320.41x = 108,003,317,609.46
  5. Step 5: Solve for x
    x = 108,003,317,609.46/485,320.41
  6. Step 6: Final answer
    x = 222,540.23

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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.