Home / 2,128,469.60-3,192,704.40-991,229.60

Finding the Fourth Proportional to 2,128,469.60, 3,192,704.40 and 991,229.60

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Solution

The fourth proportional to 2,128,469.60, 3,192,704.40 and 991,229.60 is: 1,486,844.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,469.60 : 3,192,704.40 = 991,229.60 : x
  2. Step 2: Convert to fraction form
    2,128,469.60/3,192,704.40 = 991,229.60/x
  3. Step 3: Cross multiply
    2,128,469.60x = 3,192,704.40 × 991,229.60
  4. Step 4: Simplify right side
    2,128,469.60x = 3,164,703,105,330.24
  5. Step 5: Solve for x
    x = 3,164,703,105,330.24/2,128,469.60
  6. Step 6: Final answer
    x = 1,486,844.40

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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.