Home / 1,427,426.82-1,969,874.28-782,841.42

Finding the Fourth Proportional to 1,427,426.82, 1,969,874.28 and 782,841.42

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Solution

The fourth proportional to 1,427,426.82, 1,969,874.28 and 782,841.42 is: 1,080,335.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,426.82 : 1,969,874.28 = 782,841.42 : x
  2. Step 2: Convert to fraction form
    1,427,426.82/1,969,874.28 = 782,841.42/x
  3. Step 3: Cross multiply
    1,427,426.82x = 1,969,874.28 × 782,841.42
  4. Step 4: Simplify right side
    1,427,426.82x = 1,542,099,178,576.68
  5. Step 5: Solve for x
    x = 1,542,099,178,576.68/1,427,426.82
  6. Step 6: Final answer
    x = 1,080,335.02

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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.