Home / 3,215,793.20-4,823,689.80-819,633.20

Finding the Fourth Proportional to 3,215,793.20, 4,823,689.80 and 819,633.20

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Solution

The fourth proportional to 3,215,793.20, 4,823,689.80 and 819,633.20 is: 1,229,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215,793.20 : 4,823,689.80 = 819,633.20 : x
  2. Step 2: Convert to fraction form
    3,215,793.20/4,823,689.80 = 819,633.20/x
  3. Step 3: Cross multiply
    3,215,793.20x = 4,823,689.80 × 819,633.20
  4. Step 4: Simplify right side
    3,215,793.20x = 3,953,656,306,581.36
  5. Step 5: Solve for x
    x = 3,953,656,306,581.36/3,215,793.20
  6. Step 6: Final answer
    x = 1,229,449.80

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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.