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Finding the Fourth Proportional to 796.50, 1,193.55 and 487.93

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Solution

The fourth proportional to 796.50, 1,193.55 and 487.93 is: 731.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.50 : 1,193.55 = 487.93 : x
  2. Step 2: Convert to fraction form
    796.50/1,193.55 = 487.93/x
  3. Step 3: Cross multiply
    796.50x = 1,193.55 × 487.93
  4. Step 4: Simplify right side
    796.50x = 582,368.85
  5. Step 5: Solve for x
    x = 582,368.85/796.50
  6. Step 6: Final answer
    x = 731.16

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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.