Home / 680,691.56-1,021,158.94-231,388.82

Finding the Fourth Proportional to 680,691.56, 1,021,158.94 and 231,388.82

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Solution

The fourth proportional to 680,691.56, 1,021,158.94 and 231,388.82 is: 347,124.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,691.56 : 1,021,158.94 = 231,388.82 : x
  2. Step 2: Convert to fraction form
    680,691.56/1,021,158.94 = 231,388.82/x
  3. Step 3: Cross multiply
    680,691.56x = 1,021,158.94 × 231,388.82
  4. Step 4: Simplify right side
    680,691.56x = 236,284,762,159.05
  5. Step 5: Solve for x
    x = 236,284,762,159.05/680,691.56
  6. Step 6: Final answer
    x = 347,124.57

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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.