Home / 485,418.20-727,932.90-169,712.60

Finding the Fourth Proportional to 485,418.20, 727,932.90 and 169,712.60

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Solution

The fourth proportional to 485,418.20, 727,932.90 and 169,712.60 is: 254,500.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,418.20 : 727,932.90 = 169,712.60 : x
  2. Step 2: Convert to fraction form
    485,418.20/727,932.90 = 169,712.60/x
  3. Step 3: Cross multiply
    485,418.20x = 727,932.90 × 169,712.60
  4. Step 4: Simplify right side
    485,418.20x = 123,539,385,084.54
  5. Step 5: Solve for x
    x = 123,539,385,084.54/485,418.20
  6. Step 6: Final answer
    x = 254,500.93

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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.