Home / 2,478,198.56-3,419,972.97-1,390,550.59

Finding the Fourth Proportional to 2,478,198.56, 3,419,972.97 and 1,390,550.59

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Solution

The fourth proportional to 2,478,198.56, 3,419,972.97 and 1,390,550.59 is: 1,918,992.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478,198.56 : 3,419,972.97 = 1,390,550.59 : x
  2. Step 2: Convert to fraction form
    2,478,198.56/3,419,972.97 = 1,390,550.59/x
  3. Step 3: Cross multiply
    2,478,198.56x = 3,419,972.97 × 1,390,550.59
  4. Step 4: Simplify right side
    2,478,198.56x = 4,755,645,438,099.80
  5. Step 5: Solve for x
    x = 4,755,645,438,099.80/2,478,198.56
  6. Step 6: Final answer
    x = 1,918,992.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.