Home / 725,718.57-1,001,489.01-399,052.97

Finding the Fourth Proportional to 725,718.57, 1,001,489.01 and 399,052.97

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Solution

The fourth proportional to 725,718.57, 1,001,489.01 and 399,052.97 is: 550,691.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,718.57 : 1,001,489.01 = 399,052.97 : x
  2. Step 2: Convert to fraction form
    725,718.57/1,001,489.01 = 399,052.97/x
  3. Step 3: Cross multiply
    725,718.57x = 1,001,489.01 × 399,052.97
  4. Step 4: Simplify right side
    725,718.57x = 399,647,158,855.42
  5. Step 5: Solve for x
    x = 399,647,158,855.42/725,718.57
  6. Step 6: Final answer
    x = 550,691.65

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1.5x scale

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.