Home / 1,427,279.93-1,969,691.96-782,698.61

Finding the Fourth Proportional to 1,427,279.93, 1,969,691.96 and 782,698.61

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Solution

The fourth proportional to 1,427,279.93, 1,969,691.96 and 782,698.61 is: 1,080,149.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,279.93 : 1,969,691.96 = 782,698.61 : x
  2. Step 2: Convert to fraction form
    1,427,279.93/1,969,691.96 = 782,698.61/x
  3. Step 3: Cross multiply
    1,427,279.93x = 1,969,691.96 × 782,698.61
  4. Step 4: Simplify right side
    1,427,279.93x = 1,541,675,145,458.22
  5. Step 5: Solve for x
    x = 1,541,675,145,458.22/1,427,279.93
  6. Step 6: Final answer
    x = 1,080,149.11

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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.