Home / 866,297.94-1,297,428.39-842,382.42

Finding the Fourth Proportional to 866,297.94, 1,297,428.39 and 842,382.42

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Solution

The fourth proportional to 866,297.94, 1,297,428.39 and 842,382.42 is: 1,261,610.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,297.94 : 1,297,428.39 = 842,382.42 : x
  2. Step 2: Convert to fraction form
    866,297.94/1,297,428.39 = 842,382.42/x
  3. Step 3: Cross multiply
    866,297.94x = 1,297,428.39 × 842,382.42
  4. Step 4: Simplify right side
    866,297.94x = 1,092,930,866,944.90
  5. Step 5: Solve for x
    x = 1,092,930,866,944.90/866,297.94
  6. Step 6: Final answer
    x = 1,261,610.83

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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.