Home / 485,425.20-727,943.40-169,719.60

Finding the Fourth Proportional to 485,425.20, 727,943.40 and 169,719.60

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Solution

The fourth proportional to 485,425.20, 727,943.40 and 169,719.60 is: 254,511.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,425.20 : 727,943.40 = 169,719.60 : x
  2. Step 2: Convert to fraction form
    485,425.20/727,943.40 = 169,719.60/x
  3. Step 3: Cross multiply
    485,425.20x = 727,943.40 × 169,719.60
  4. Step 4: Simplify right side
    485,425.20x = 123,546,262,670.64
  5. Step 5: Solve for x
    x = 123,546,262,670.64/485,425.20
  6. Step 6: Final answer
    x = 254,511.43

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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.