Home / 1,268,891.76-1,750,909.20-725,062.80

Finding the Fourth Proportional to 1,268,891.76, 1,750,909.20 and 725,062.80

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Solution

The fourth proportional to 1,268,891.76, 1,750,909.20 and 725,062.80 is: 1,000,494.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,891.76 : 1,750,909.20 = 725,062.80 : x
  2. Step 2: Convert to fraction form
    1,268,891.76/1,750,909.20 = 725,062.80/x
  3. Step 3: Cross multiply
    1,268,891.76x = 1,750,909.20 × 725,062.80
  4. Step 4: Simplify right side
    1,268,891.76x = 1,269,519,127,097.76
  5. Step 5: Solve for x
    x = 1,269,519,127,097.76/1,268,891.76
  6. Step 6: Final answer
    x = 1,000,494.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.