Home / 958,991.92-1,438,721.52-319,294.48

Finding the Fourth Proportional to 958,991.92, 1,438,721.52 and 319,294.48

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Solution

The fourth proportional to 958,991.92, 1,438,721.52 and 319,294.48 is: 479,019.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,991.92 : 1,438,721.52 = 319,294.48 : x
  2. Step 2: Convert to fraction form
    958,991.92/1,438,721.52 = 319,294.48/x
  3. Step 3: Cross multiply
    958,991.92x = 1,438,721.52 × 319,294.48
  4. Step 4: Simplify right side
    958,991.92x = 459,375,839,593.21
  5. Step 5: Solve for x
    x = 459,375,839,593.21/958,991.92
  6. Step 6: Final answer
    x = 479,019.51

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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.