Home / 680,691.57-1,021,158.96-231,388.83

Finding the Fourth Proportional to 680,691.57, 1,021,158.96 and 231,388.83

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Solution

The fourth proportional to 680,691.57, 1,021,158.96 and 231,388.83 is: 347,124.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,691.57 : 1,021,158.96 = 231,388.83 : x
  2. Step 2: Convert to fraction form
    680,691.57/1,021,158.96 = 231,388.83/x
  3. Step 3: Cross multiply
    680,691.57x = 1,021,158.96 × 231,388.83
  4. Step 4: Simplify right side
    680,691.57x = 236,284,776,998.42
  5. Step 5: Solve for x
    x = 236,284,776,998.42/680,691.57
  6. Step 6: Final answer
    x = 347,124.58

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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.