Home / 664,715.54-996,864.17-215,332.14

Finding the Fourth Proportional to 664,715.54, 996,864.17 and 215,332.14

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Solution

The fourth proportional to 664,715.54, 996,864.17 and 215,332.14 is: 322,930.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,715.54 : 996,864.17 = 215,332.14 : x
  2. Step 2: Convert to fraction form
    664,715.54/996,864.17 = 215,332.14/x
  3. Step 3: Cross multiply
    664,715.54x = 996,864.17 × 215,332.14
  4. Step 4: Simplify right side
    664,715.54x = 214,656,897,677.00
  5. Step 5: Solve for x
    x = 214,656,897,677.00/664,715.54
  6. Step 6: Final answer
    x = 322,930.46

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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.