Home / 1,121,960.97-1,682,941.43-280,512.72

Finding the Fourth Proportional to 1,121,960.97, 1,682,941.43 and 280,512.72

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Solution

The fourth proportional to 1,121,960.97, 1,682,941.43 and 280,512.72 is: 420,769.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,960.97 : 1,682,941.43 = 280,512.72 : x
  2. Step 2: Convert to fraction form
    1,121,960.97/1,682,941.43 = 280,512.72/x
  3. Step 3: Cross multiply
    1,121,960.97x = 1,682,941.43 × 280,512.72
  4. Step 4: Simplify right side
    1,121,960.97x = 472,086,476,727.43
  5. Step 5: Solve for x
    x = 472,086,476,727.43/1,121,960.97
  6. Step 6: Final answer
    x = 420,769.07

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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.