Home / 729,136.38-1,093,757.12-279,857.25

Finding the Fourth Proportional to 729,136.38, 1,093,757.12 and 279,857.25

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Solution

The fourth proportional to 729,136.38, 1,093,757.12 and 279,857.25 is: 419,806.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,136.38 : 1,093,757.12 = 279,857.25 : x
  2. Step 2: Convert to fraction form
    729,136.38/1,093,757.12 = 279,857.25/x
  3. Step 3: Cross multiply
    729,136.38x = 1,093,757.12 × 279,857.25
  4. Step 4: Simplify right side
    729,136.38x = 306,095,859,771.12
  5. Step 5: Solve for x
    x = 306,095,859,771.12/729,136.38
  6. Step 6: Final answer
    x = 419,806.04

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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.