Home / 819,564.12-1,229,251.62-220,478.20

Finding the Fourth Proportional to 819,564.12, 1,229,251.62 and 220,478.20

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Solution

The fourth proportional to 819,564.12, 1,229,251.62 and 220,478.20 is: 330,691.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,564.12 : 1,229,251.62 = 220,478.20 : x
  2. Step 2: Convert to fraction form
    819,564.12/1,229,251.62 = 220,478.20/x
  3. Step 3: Cross multiply
    819,564.12x = 1,229,251.62 × 220,478.20
  4. Step 4: Simplify right side
    819,564.12x = 271,023,183,422.29
  5. Step 5: Solve for x
    x = 271,023,183,422.29/819,564.12
  6. Step 6: Final answer
    x = 330,691.86

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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.