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Finding the Fourth Proportional to 525.69, 791.42 and 481.05

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Solution

The fourth proportional to 525.69, 791.42 and 481.05 is: 724.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.69 : 791.42 = 481.05 : x
  2. Step 2: Convert to fraction form
    525.69/791.42 = 481.05/x
  3. Step 3: Cross multiply
    525.69x = 791.42 × 481.05
  4. Step 4: Simplify right side
    525.69x = 380,710.19
  5. Step 5: Solve for x
    x = 380,710.19/525.69
  6. Step 6: Final answer
    x = 724.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.