Home / 809,382-1,213,787.92-269,491.60

Finding the Fourth Proportional to 809,382, 1,213,787.92 and 269,491.60

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Solution

The fourth proportional to 809,382, 1,213,787.92 and 269,491.60 is: 404,142.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,382 : 1,213,787.92 = 269,491.60 : x
  2. Step 2: Convert to fraction form
    809,382/1,213,787.92 = 269,491.60/x
  3. Step 3: Cross multiply
    809,382x = 1,213,787.92 × 269,491.60
  4. Step 4: Simplify right side
    809,382x = 327,105,648,621.47
  5. Step 5: Solve for x
    x = 327,105,648,621.47/809,382
  6. Step 6: Final answer
    x = 404,142.48

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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.