Home / 486,948.80-729,926.40-329,193.20

Finding the Fourth Proportional to 486,948.80, 729,926.40 and 329,193.20

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Solution

The fourth proportional to 486,948.80, 729,926.40 and 329,193.20 is: 493,453.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,948.80 : 729,926.40 = 329,193.20 : x
  2. Step 2: Convert to fraction form
    486,948.80/729,926.40 = 329,193.20/x
  3. Step 3: Cross multiply
    486,948.80x = 729,926.40 × 329,193.20
  4. Step 4: Simplify right side
    486,948.80x = 240,286,807,380.48
  5. Step 5: Solve for x
    x = 240,286,807,380.48/486,948.80
  6. Step 6: Final answer
    x = 493,453.95

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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.