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Finding the Fourth Proportional to 845.24, 1,265.96 and 650.48

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Solution

The fourth proportional to 845.24, 1,265.96 and 650.48 is: 974.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    845.24 : 1,265.96 = 650.48 : x
  2. Step 2: Convert to fraction form
    845.24/1,265.96 = 650.48/x
  3. Step 3: Cross multiply
    845.24x = 1,265.96 × 650.48
  4. Step 4: Simplify right side
    845.24x = 823,481.66
  5. Step 5: Solve for x
    x = 823,481.66/845.24
  6. Step 6: Final answer
    x = 974.26

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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.