Home / 664,708.20-996,947.10-243,767.40

Finding the Fourth Proportional to 664,708.20, 996,947.10 and 243,767.40

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Solution

The fourth proportional to 664,708.20, 996,947.10 and 243,767.40 is: 365,608.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,708.20 : 996,947.10 = 243,767.40 : x
  2. Step 2: Convert to fraction form
    664,708.20/996,947.10 = 243,767.40/x
  3. Step 3: Cross multiply
    664,708.20x = 996,947.10 × 243,767.40
  4. Step 4: Simplify right side
    664,708.20x = 243,023,202,504.54
  5. Step 5: Solve for x
    x = 243,023,202,504.54/664,708.20
  6. Step 6: Final answer
    x = 365,608.85

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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.