Home / 664,402.96-996,763.20-215,124.31

Finding the Fourth Proportional to 664,402.96, 996,763.20 and 215,124.31

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Solution

The fourth proportional to 664,402.96, 996,763.20 and 215,124.31 is: 322,737.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,402.96 : 996,763.20 = 215,124.31 : x
  2. Step 2: Convert to fraction form
    664,402.96/996,763.20 = 215,124.31/x
  3. Step 3: Cross multiply
    664,402.96x = 996,763.20 × 215,124.31
  4. Step 4: Simplify right side
    664,402.96x = 214,427,995,633.39
  5. Step 5: Solve for x
    x = 214,427,995,633.39/664,402.96
  6. Step 6: Final answer
    x = 322,737.87

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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.