Home / 438,780.26-658,195.01-123,212.57

Finding the Fourth Proportional to 438,780.26, 658,195.01 and 123,212.57

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Solution

The fourth proportional to 438,780.26, 658,195.01 and 123,212.57 is: 184,825.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,780.26 : 658,195.01 = 123,212.57 : x
  2. Step 2: Convert to fraction form
    438,780.26/658,195.01 = 123,212.57/x
  3. Step 3: Cross multiply
    438,780.26x = 658,195.01 × 123,212.57
  4. Step 4: Simplify right side
    438,780.26x = 81,097,895,452.30
  5. Step 5: Solve for x
    x = 81,097,895,452.30/438,780.26
  6. Step 6: Final answer
    x = 184,825.76

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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.