Home / 690,896.57-1,036,344.84-269,877.20

Finding the Fourth Proportional to 690,896.57, 1,036,344.84 and 269,877.20

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Solution

The fourth proportional to 690,896.57, 1,036,344.84 and 269,877.20 is: 404,815.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,896.57 : 1,036,344.84 = 269,877.20 : x
  2. Step 2: Convert to fraction form
    690,896.57/1,036,344.84 = 269,877.20/x
  3. Step 3: Cross multiply
    690,896.57x = 1,036,344.84 × 269,877.20
  4. Step 4: Simplify right side
    690,896.57x = 279,685,838,471.92
  5. Step 5: Solve for x
    x = 279,685,838,471.92/690,896.57
  6. Step 6: Final answer
    x = 404,815.79

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Double scale
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Similar ratio
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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.