Home / 1,225,432.64-1,691,067.49-681,566.78

Finding the Fourth Proportional to 1,225,432.64, 1,691,067.49 and 681,566.78

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Solution

The fourth proportional to 1,225,432.64, 1,691,067.49 and 681,566.78 is: 940,545.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,432.64 : 1,691,067.49 = 681,566.78 : x
  2. Step 2: Convert to fraction form
    1,225,432.64/1,691,067.49 = 681,566.78/x
  3. Step 3: Cross multiply
    1,225,432.64x = 1,691,067.49 × 681,566.78
  4. Step 4: Simplify right side
    1,225,432.64x = 1,152,575,413,762.73
  5. Step 5: Solve for x
    x = 1,152,575,413,762.73/1,225,432.64
  6. Step 6: Final answer
    x = 940,545.71

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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.