Home / 1,327,883.20-1,989,200.40-727,770.40

Finding the Fourth Proportional to 1,327,883.20, 1,989,200.40 and 727,770.40

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Solution

The fourth proportional to 1,327,883.20, 1,989,200.40 and 727,770.40 is: 1,090,217.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,883.20 : 1,989,200.40 = 727,770.40 : x
  2. Step 2: Convert to fraction form
    1,327,883.20/1,989,200.40 = 727,770.40/x
  3. Step 3: Cross multiply
    1,327,883.20x = 1,989,200.40 × 727,770.40
  4. Step 4: Simplify right side
    1,327,883.20x = 1,447,681,170,788.16
  5. Step 5: Solve for x
    x = 1,447,681,170,788.16/1,327,883.20
  6. Step 6: Final answer
    x = 1,090,217.25

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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.