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Finding the Fourth Proportional to 896.18, 1,344.60 and 484.83

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Solution

The fourth proportional to 896.18, 1,344.60 and 484.83 is: 727.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    896.18 : 1,344.60 = 484.83 : x
  2. Step 2: Convert to fraction form
    896.18/1,344.60 = 484.83/x
  3. Step 3: Cross multiply
    896.18x = 1,344.60 × 484.83
  4. Step 4: Simplify right side
    896.18x = 651,902.42
  5. Step 5: Solve for x
    x = 651,902.42/896.18
  6. Step 6: Final answer
    x = 727.43

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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.