Home / 664,930.32-997,535.61-215,616.18

Finding the Fourth Proportional to 664,930.32, 997,535.61 and 215,616.18

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Solution

The fourth proportional to 664,930.32, 997,535.61 and 215,616.18 is: 323,469.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,930.32 : 997,535.61 = 215,616.18 : x
  2. Step 2: Convert to fraction form
    664,930.32/997,535.61 = 215,616.18/x
  3. Step 3: Cross multiply
    664,930.32x = 997,535.61 × 215,616.18
  4. Step 4: Simplify right side
    664,930.32x = 215,084,817,642.17
  5. Step 5: Solve for x
    x = 215,084,817,642.17/664,930.32
  6. Step 6: Final answer
    x = 323,469.71

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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.