Home / 1,987,999.60-2,981,999.40-726,732.40

Finding the Fourth Proportional to 1,987,999.60, 2,981,999.40 and 726,732.40

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Solution

The fourth proportional to 1,987,999.60, 2,981,999.40 and 726,732.40 is: 1,090,098.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,999.60 : 2,981,999.40 = 726,732.40 : x
  2. Step 2: Convert to fraction form
    1,987,999.60/2,981,999.40 = 726,732.40/x
  3. Step 3: Cross multiply
    1,987,999.60x = 2,981,999.40 × 726,732.40
  4. Step 4: Simplify right side
    1,987,999.60x = 2,167,115,580,760.56
  5. Step 5: Solve for x
    x = 2,167,115,580,760.56/1,987,999.60
  6. Step 6: Final answer
    x = 1,090,098.60

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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.