Home / 1,987,427.53-2,981,190.30-725,254.75

Finding the Fourth Proportional to 1,987,427.53, 2,981,190.30 and 725,254.75

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Solution

The fourth proportional to 1,987,427.53, 2,981,190.30 and 725,254.75 is: 1,087,900.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,427.53 : 2,981,190.30 = 725,254.75 : x
  2. Step 2: Convert to fraction form
    1,987,427.53/2,981,190.30 = 725,254.75/x
  3. Step 3: Cross multiply
    1,987,427.53x = 2,981,190.30 × 725,254.75
  4. Step 4: Simplify right side
    1,987,427.53x = 2,162,122,425,728.92
  5. Step 5: Solve for x
    x = 2,162,122,425,728.92/1,987,427.53
  6. Step 6: Final answer
    x = 1,087,900.01

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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.