Home / 1,987,426.53-2,981,188.80-725,253.75

Finding the Fourth Proportional to 1,987,426.53, 2,981,188.80 and 725,253.75

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Solution

The fourth proportional to 1,987,426.53, 2,981,188.80 and 725,253.75 is: 1,087,898.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,426.53 : 2,981,188.80 = 725,253.75 : x
  2. Step 2: Convert to fraction form
    1,987,426.53/2,981,188.80 = 725,253.75/x
  3. Step 3: Cross multiply
    1,987,426.53x = 2,981,188.80 × 725,253.75
  4. Step 4: Simplify right side
    1,987,426.53x = 2,162,118,356,658.00
  5. Step 5: Solve for x
    x = 2,162,118,356,658.00/1,987,426.53
  6. Step 6: Final answer
    x = 1,087,898.51

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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.