Home / 2,790,864.72-4,180,691.92-1,272,458.97

Finding the Fourth Proportional to 2,790,864.72, 4,180,691.92 and 1,272,458.97

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Solution

The fourth proportional to 2,790,864.72, 4,180,691.92 and 1,272,458.97 is: 1,906,132.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790,864.72 : 4,180,691.92 = 1,272,458.97 : x
  2. Step 2: Convert to fraction form
    2,790,864.72/4,180,691.92 = 1,272,458.97/x
  3. Step 3: Cross multiply
    2,790,864.72x = 4,180,691.92 × 1,272,458.97
  4. Step 4: Simplify right side
    2,790,864.72x = 5,319,758,913,507.06
  5. Step 5: Solve for x
    x = 5,319,758,913,507.06/2,790,864.72
  6. Step 6: Final answer
    x = 1,906,132.85

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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.