Home / 805,151.20-1,206,344.40-383,519.20

Finding the Fourth Proportional to 805,151.20, 1,206,344.40 and 383,519.20

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Solution

The fourth proportional to 805,151.20, 1,206,344.40 and 383,519.20 is: 574,620.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,151.20 : 1,206,344.40 = 383,519.20 : x
  2. Step 2: Convert to fraction form
    805,151.20/1,206,344.40 = 383,519.20/x
  3. Step 3: Cross multiply
    805,151.20x = 1,206,344.40 × 383,519.20
  4. Step 4: Simplify right side
    805,151.20x = 462,656,239,212.48
  5. Step 5: Solve for x
    x = 462,656,239,212.48/805,151.20
  6. Step 6: Final answer
    x = 574,620.32

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1.5x scale

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.