Home / 499,895.12-749,842.68-219,414.80

Finding the Fourth Proportional to 499,895.12, 749,842.68 and 219,414.80

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Solution

The fourth proportional to 499,895.12, 749,842.68 and 219,414.80 is: 329,122.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,895.12 : 749,842.68 = 219,414.80 : x
  2. Step 2: Convert to fraction form
    499,895.12/749,842.68 = 219,414.80/x
  3. Step 3: Cross multiply
    499,895.12x = 749,842.68 × 219,414.80
  4. Step 4: Simplify right side
    499,895.12x = 164,526,581,663.66
  5. Step 5: Solve for x
    x = 164,526,581,663.66/499,895.12
  6. Step 6: Final answer
    x = 329,122.20

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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.