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Finding the Fourth Proportional to 499,008.60, 748,512.90 and 443,896.20

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Solution

The fourth proportional to 499,008.60, 748,512.90 and 443,896.20 is: 665,844.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,008.60 : 748,512.90 = 443,896.20 : x
  2. Step 2: Convert to fraction form
    499,008.60/748,512.90 = 443,896.20/x
  3. Step 3: Cross multiply
    499,008.60x = 748,512.90 × 443,896.20
  4. Step 4: Simplify right side
    499,008.60x = 332,262,031,960.98
  5. Step 5: Solve for x
    x = 332,262,031,960.98/499,008.60
  6. Step 6: Final answer
    x = 665,844.30

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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.