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Finding the Fourth Proportional to 439,227.20, 658,840.80 and 344,748.80

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Solution

The fourth proportional to 439,227.20, 658,840.80 and 344,748.80 is: 517,123.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,227.20 : 658,840.80 = 344,748.80 : x
  2. Step 2: Convert to fraction form
    439,227.20/658,840.80 = 344,748.80/x
  3. Step 3: Cross multiply
    439,227.20x = 658,840.80 × 344,748.80
  4. Step 4: Simplify right side
    439,227.20x = 227,134,575,191.04
  5. Step 5: Solve for x
    x = 227,134,575,191.04/439,227.20
  6. Step 6: Final answer
    x = 517,123.20

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1.5x scale

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.