Home / 680,690.56-1,021,157.44-231,387.82

Finding the Fourth Proportional to 680,690.56, 1,021,157.44 and 231,387.82

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Solution

The fourth proportional to 680,690.56, 1,021,157.44 and 231,387.82 is: 347,123.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,690.56 : 1,021,157.44 = 231,387.82 : x
  2. Step 2: Convert to fraction form
    680,690.56/1,021,157.44 = 231,387.82/x
  3. Step 3: Cross multiply
    680,690.56x = 1,021,157.44 × 231,387.82
  4. Step 4: Simplify right side
    680,690.56x = 236,283,393,918.38
  5. Step 5: Solve for x
    x = 236,283,393,918.38/680,690.56
  6. Step 6: Final answer
    x = 347,123.07

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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.