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Finding the Fourth Proportional to 664,793.11, 997,501.08 and 327,649.97

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Solution

The fourth proportional to 664,793.11, 997,501.08 and 327,649.97 is: 491,628.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,793.11 : 997,501.08 = 327,649.97 : x
  2. Step 2: Convert to fraction form
    664,793.11/997,501.08 = 327,649.97/x
  3. Step 3: Cross multiply
    664,793.11x = 997,501.08 × 327,649.97
  4. Step 4: Simplify right side
    664,793.11x = 326,831,198,010.91
  5. Step 5: Solve for x
    x = 326,831,198,010.91/664,793.11
  6. Step 6: Final answer
    x = 491,628.44

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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.