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Finding the Fourth Proportional to 439,609.20, 658,101.60 and 262,024.80

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Solution

The fourth proportional to 439,609.20, 658,101.60 and 262,024.80 is: 392,255.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,609.20 : 658,101.60 = 262,024.80 : x
  2. Step 2: Convert to fraction form
    439,609.20/658,101.60 = 262,024.80/x
  3. Step 3: Cross multiply
    439,609.20x = 658,101.60 × 262,024.80
  4. Step 4: Simplify right side
    439,609.20x = 172,438,940,119.68
  5. Step 5: Solve for x
    x = 172,438,940,119.68/439,609.20
  6. Step 6: Final answer
    x = 392,255.08

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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.