Home / 693,727.20-1,040,785.20-338,752.80

Finding the Fourth Proportional to 693,727.20, 1,040,785.20 and 338,752.80

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Solution

The fourth proportional to 693,727.20, 1,040,785.20 and 338,752.80 is: 508,224.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,727.20 : 1,040,785.20 = 338,752.80 : x
  2. Step 2: Convert to fraction form
    693,727.20/1,040,785.20 = 338,752.80/x
  3. Step 3: Cross multiply
    693,727.20x = 1,040,785.20 × 338,752.80
  4. Step 4: Simplify right side
    693,727.20x = 352,568,900,698.56
  5. Step 5: Solve for x
    x = 352,568,900,698.56/693,727.20
  6. Step 6: Final answer
    x = 508,224.13

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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.