Home / 1,987,743.60-2,981,615.40-725,612.40

Finding the Fourth Proportional to 1,987,743.60, 2,981,615.40 and 725,612.40

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Solution

The fourth proportional to 1,987,743.60, 2,981,615.40 and 725,612.40 is: 1,088,418.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,743.60 : 2,981,615.40 = 725,612.40 : x
  2. Step 2: Convert to fraction form
    1,987,743.60/2,981,615.40 = 725,612.40/x
  3. Step 3: Cross multiply
    1,987,743.60x = 2,981,615.40 × 725,612.40
  4. Step 4: Simplify right side
    1,987,743.60x = 2,163,497,106,270.96
  5. Step 5: Solve for x
    x = 2,163,497,106,270.96/1,987,743.60
  6. Step 6: Final answer
    x = 1,088,418.60

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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.