Home / 2,132,072.74-3,198,441.45-1,278,943.85

Finding the Fourth Proportional to 2,132,072.74, 3,198,441.45 and 1,278,943.85

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Solution

The fourth proportional to 2,132,072.74, 3,198,441.45 and 1,278,943.85 is: 1,918,615.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132,072.74 : 3,198,441.45 = 1,278,943.85 : x
  2. Step 2: Convert to fraction form
    2,132,072.74/3,198,441.45 = 1,278,943.85/x
  3. Step 3: Cross multiply
    2,132,072.74x = 3,198,441.45 × 1,278,943.85
  4. Step 4: Simplify right side
    2,132,072.74x = 4,090,627,015,667.86
  5. Step 5: Solve for x
    x = 4,090,627,015,667.86/2,132,072.74
  6. Step 6: Final answer
    x = 1,918,615.13

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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.