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Finding the Fourth Proportional to 789.03, 1,180.80 and 481.02

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Solution

The fourth proportional to 789.03, 1,180.80 and 481.02 is: 719.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    789.03 : 1,180.80 = 481.02 : x
  2. Step 2: Convert to fraction form
    789.03/1,180.80 = 481.02/x
  3. Step 3: Cross multiply
    789.03x = 1,180.80 × 481.02
  4. Step 4: Simplify right side
    789.03x = 567,988.42
  5. Step 5: Solve for x
    x = 567,988.42/789.03
  6. Step 6: Final answer
    x = 719.86

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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.