Home / 1,987,494.80-2,981,290.98-725,322.20

Finding the Fourth Proportional to 1,987,494.80, 2,981,290.98 and 725,322.20

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Solution

The fourth proportional to 1,987,494.80, 2,981,290.98 and 725,322.20 is: 1,088,001.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,494.80 : 2,981,290.98 = 725,322.20 : x
  2. Step 2: Convert to fraction form
    1,987,494.80/2,981,290.98 = 725,322.20/x
  3. Step 3: Cross multiply
    1,987,494.80x = 2,981,290.98 × 725,322.20
  4. Step 4: Simplify right side
    1,987,494.80x = 2,162,396,532,453.76
  5. Step 5: Solve for x
    x = 2,162,396,532,453.76/1,987,494.80
  6. Step 6: Final answer
    x = 1,088,001.10

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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.