Home / 781,651.20-1,172,246.40-308,179.20

Finding the Fourth Proportional to 781,651.20, 1,172,246.40 and 308,179.20

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Solution

The fourth proportional to 781,651.20, 1,172,246.40 and 308,179.20 is: 462,177.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,651.20 : 1,172,246.40 = 308,179.20 : x
  2. Step 2: Convert to fraction form
    781,651.20/1,172,246.40 = 308,179.20/x
  3. Step 3: Cross multiply
    781,651.20x = 1,172,246.40 × 308,179.20
  4. Step 4: Simplify right side
    781,651.20x = 361,261,957,754.88
  5. Step 5: Solve for x
    x = 361,261,957,754.88/781,651.20
  6. Step 6: Final answer
    x = 462,177.96

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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.