Home / 817,067.20-1,225,163.40-343,217.20

Finding the Fourth Proportional to 817,067.20, 1,225,163.40 and 343,217.20

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Solution

The fourth proportional to 817,067.20, 1,225,163.40 and 343,217.20 is: 514,642.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,067.20 : 1,225,163.40 = 343,217.20 : x
  2. Step 2: Convert to fraction form
    817,067.20/1,225,163.40 = 343,217.20/x
  3. Step 3: Cross multiply
    817,067.20x = 1,225,163.40 × 343,217.20
  4. Step 4: Simplify right side
    817,067.20x = 420,497,151,690.48
  5. Step 5: Solve for x
    x = 420,497,151,690.48/817,067.20
  6. Step 6: Final answer
    x = 514,642.07

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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.