Home / 664,498.10-996,892.95-215,239.70

Finding the Fourth Proportional to 664,498.10, 996,892.95 and 215,239.70

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Solution

The fourth proportional to 664,498.10, 996,892.95 and 215,239.70 is: 322,906.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,498.10 : 996,892.95 = 215,239.70 : x
  2. Step 2: Convert to fraction form
    664,498.10/996,892.95 = 215,239.70/x
  3. Step 3: Cross multiply
    664,498.10x = 996,892.95 × 215,239.70
  4. Step 4: Simplify right side
    664,498.10x = 214,570,939,490.12
  5. Step 5: Solve for x
    x = 214,570,939,490.12/664,498.10
  6. Step 6: Final answer
    x = 322,906.78

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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.