Home / 1,329,793.20-1,992,648.60-991,245.60

Finding the Fourth Proportional to 1,329,793.20, 1,992,648.60 and 991,245.60

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Solution

The fourth proportional to 1,329,793.20, 1,992,648.60 and 991,245.60 is: 1,485,346.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,793.20 : 1,992,648.60 = 991,245.60 : x
  2. Step 2: Convert to fraction form
    1,329,793.20/1,992,648.60 = 991,245.60/x
  3. Step 3: Cross multiply
    1,329,793.20x = 1,992,648.60 × 991,245.60
  4. Step 4: Simplify right side
    1,329,793.20x = 1,975,204,157,096.16
  5. Step 5: Solve for x
    x = 1,975,204,157,096.16/1,329,793.20
  6. Step 6: Final answer
    x = 1,485,346.86

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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.