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Finding the Fourth Proportional to 526.70, 789.75 and 481.44

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Solution

The fourth proportional to 526.70, 789.75 and 481.44 is: 721.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.70 : 789.75 = 481.44 : x
  2. Step 2: Convert to fraction form
    526.70/789.75 = 481.44/x
  3. Step 3: Cross multiply
    526.70x = 789.75 × 481.44
  4. Step 4: Simplify right side
    526.70x = 380,220.20
  5. Step 5: Solve for x
    x = 380,220.20/526.70
  6. Step 6: Final answer
    x = 721.89

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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.