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Finding the Fourth Proportional to 664,755.44, 996,732.20 and 309,849.08

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Solution

The fourth proportional to 664,755.44, 996,732.20 and 309,849.08 is: 464,586.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,755.44 : 996,732.20 = 309,849.08 : x
  2. Step 2: Convert to fraction form
    664,755.44/996,732.20 = 309,849.08/x
  3. Step 3: Cross multiply
    664,755.44x = 996,732.20 × 309,849.08
  4. Step 4: Simplify right side
    664,755.44x = 308,836,555,176.38
  5. Step 5: Solve for x
    x = 308,836,555,176.38/664,755.44
  6. Step 6: Final answer
    x = 464,586.73

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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.