Home / 809,665.78-1,214,415.21-269,863.73

Finding the Fourth Proportional to 809,665.78, 1,214,415.21 and 269,863.73

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Solution

The fourth proportional to 809,665.78, 1,214,415.21 and 269,863.73 is: 404,767.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,665.78 : 1,214,415.21 = 269,863.73 : x
  2. Step 2: Convert to fraction form
    809,665.78/1,214,415.21 = 269,863.73/x
  3. Step 3: Cross multiply
    809,665.78x = 1,214,415.21 × 269,863.73
  4. Step 4: Simplify right side
    809,665.78x = 327,726,612,267.26
  5. Step 5: Solve for x
    x = 327,726,612,267.26/809,665.78
  6. Step 6: Final answer
    x = 404,767.77

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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.