Home / 664,418.86-996,787.02-215,140.24

Finding the Fourth Proportional to 664,418.86, 996,787.02 and 215,140.24

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Solution

The fourth proportional to 664,418.86, 996,787.02 and 215,140.24 is: 322,761.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,418.86 : 996,787.02 = 215,140.24 : x
  2. Step 2: Convert to fraction form
    664,418.86/996,787.02 = 215,140.24/x
  3. Step 3: Cross multiply
    664,418.86x = 996,787.02 × 215,140.24
  4. Step 4: Simplify right side
    664,418.86x = 214,448,998,711.69
  5. Step 5: Solve for x
    x = 214,448,998,711.69/664,418.86
  6. Step 6: Final answer
    x = 322,761.76

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Double scale
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1.5x scale

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.