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Finding the Fourth Proportional to 499,010.60, 748,515.90 and 443,898.20

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Solution

The fourth proportional to 499,010.60, 748,515.90 and 443,898.20 is: 665,847.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,010.60 : 748,515.90 = 443,898.20 : x
  2. Step 2: Convert to fraction form
    499,010.60/748,515.90 = 443,898.20/x
  3. Step 3: Cross multiply
    499,010.60x = 748,515.90 × 443,898.20
  4. Step 4: Simplify right side
    499,010.60x = 332,264,860,681.38
  5. Step 5: Solve for x
    x = 332,264,860,681.38/499,010.60
  6. Step 6: Final answer
    x = 665,847.30

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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.