Home / 1,327,116.60-1,986,738.30-878,344.20

Finding the Fourth Proportional to 1,327,116.60, 1,986,738.30 and 878,344.20

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Solution

The fourth proportional to 1,327,116.60, 1,986,738.30 and 878,344.20 is: 1,314,910.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,116.60 : 1,986,738.30 = 878,344.20 : x
  2. Step 2: Convert to fraction form
    1,327,116.60/1,986,738.30 = 878,344.20/x
  3. Step 3: Cross multiply
    1,327,116.60x = 1,986,738.30 × 878,344.20
  4. Step 4: Simplify right side
    1,327,116.60x = 1,745,040,062,722.86
  5. Step 5: Solve for x
    x = 1,745,040,062,722.86/1,327,116.60
  6. Step 6: Final answer
    x = 1,314,910.88

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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.