Home / 887,540.80-1,331,311.20-747,054.40

Finding the Fourth Proportional to 887,540.80, 1,331,311.20 and 747,054.40

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Solution

The fourth proportional to 887,540.80, 1,331,311.20 and 747,054.40 is: 1,120,581.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,540.80 : 1,331,311.20 = 747,054.40 : x
  2. Step 2: Convert to fraction form
    887,540.80/1,331,311.20 = 747,054.40/x
  3. Step 3: Cross multiply
    887,540.80x = 1,331,311.20 × 747,054.40
  4. Step 4: Simplify right side
    887,540.80x = 994,561,889,729.28
  5. Step 5: Solve for x
    x = 994,561,889,729.28/887,540.80
  6. Step 6: Final answer
    x = 1,120,581.60

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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.