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Finding the Fourth Proportional to 664,151, 996,757.40 and 344,393.76

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Solution

The fourth proportional to 664,151, 996,757.40 and 344,393.76 is: 516,865.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,151 : 996,757.40 = 344,393.76 : x
  2. Step 2: Convert to fraction form
    664,151/996,757.40 = 344,393.76/x
  3. Step 3: Cross multiply
    664,151x = 996,757.40 × 344,393.76
  4. Step 4: Simplify right side
    664,151x = 343,277,028,793.82
  5. Step 5: Solve for x
    x = 343,277,028,793.82/664,151
  6. Step 6: Final answer
    x = 516,865.94

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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.