Home / 2,660,036.97-3,990,616.53-862,780.86

Finding the Fourth Proportional to 2,660,036.97, 3,990,616.53 and 862,780.86

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Solution

The fourth proportional to 2,660,036.97, 3,990,616.53 and 862,780.86 is: 1,294,353.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,036.97 : 3,990,616.53 = 862,780.86 : x
  2. Step 2: Convert to fraction form
    2,660,036.97/3,990,616.53 = 862,780.86/x
  3. Step 3: Cross multiply
    2,660,036.97x = 3,990,616.53 × 862,780.86
  4. Step 4: Simplify right side
    2,660,036.97x = 3,443,027,561,683.62
  5. Step 5: Solve for x
    x = 3,443,027,561,683.62/2,660,036.97
  6. Step 6: Final answer
    x = 1,294,353.27

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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.