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Finding the Fourth Proportional to 485,025.20, 727,537.80 and 443,034.80

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Solution

The fourth proportional to 485,025.20, 727,537.80 and 443,034.80 is: 664,552.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,025.20 : 727,537.80 = 443,034.80 : x
  2. Step 2: Convert to fraction form
    485,025.20/727,537.80 = 443,034.80/x
  3. Step 3: Cross multiply
    485,025.20x = 727,537.80 × 443,034.80
  4. Step 4: Simplify right side
    485,025.20x = 322,324,563,715.44
  5. Step 5: Solve for x
    x = 322,324,563,715.44/485,025.20
  6. Step 6: Final answer
    x = 664,552.20

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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.