Home / 515,531.60-773,598.44-215,986.56

Finding the Fourth Proportional to 515,531.60, 773,598.44 and 215,986.56

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Solution

The fourth proportional to 515,531.60, 773,598.44 and 215,986.56 is: 324,105.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,531.60 : 773,598.44 = 215,986.56 : x
  2. Step 2: Convert to fraction form
    515,531.60/773,598.44 = 215,986.56/x
  3. Step 3: Cross multiply
    515,531.60x = 773,598.44 × 215,986.56
  4. Step 4: Simplify right side
    515,531.60x = 167,086,865,876.97
  5. Step 5: Solve for x
    x = 167,086,865,876.97/515,531.60
  6. Step 6: Final answer
    x = 324,105.96

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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.