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Finding the Fourth Proportional to 794.34, 1,096.56 and 648.54

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Solution

The fourth proportional to 794.34, 1,096.56 and 648.54 is: 895.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.34 : 1,096.56 = 648.54 : x
  2. Step 2: Convert to fraction form
    794.34/1,096.56 = 648.54/x
  3. Step 3: Cross multiply
    794.34x = 1,096.56 × 648.54
  4. Step 4: Simplify right side
    794.34x = 711,163.02
  5. Step 5: Solve for x
    x = 711,163.02/794.34
  6. Step 6: Final answer
    x = 895.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.