Home / 485,429.20-727,949.40-169,723.60

Finding the Fourth Proportional to 485,429.20, 727,949.40 and 169,723.60

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Solution

The fourth proportional to 485,429.20, 727,949.40 and 169,723.60 is: 254,517.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,429.20 : 727,949.40 = 169,723.60 : x
  2. Step 2: Convert to fraction form
    485,429.20/727,949.40 = 169,723.60/x
  3. Step 3: Cross multiply
    485,429.20x = 727,949.40 × 169,723.60
  4. Step 4: Simplify right side
    485,429.20x = 123,550,192,785.84
  5. Step 5: Solve for x
    x = 123,550,192,785.84/485,429.20
  6. Step 6: Final answer
    x = 254,517.43

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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.