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Finding the Fourth Proportional to 796.80, 1,099.08 and 534.72

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Solution

The fourth proportional to 796.80, 1,099.08 and 534.72 is: 737.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.80 : 1,099.08 = 534.72 : x
  2. Step 2: Convert to fraction form
    796.80/1,099.08 = 534.72/x
  3. Step 3: Cross multiply
    796.80x = 1,099.08 × 534.72
  4. Step 4: Simplify right side
    796.80x = 587,700.06
  5. Step 5: Solve for x
    x = 587,700.06/796.80
  6. Step 6: Final answer
    x = 737.58

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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.