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Finding the Fourth Proportional to 732.23, 1,096.21 and 423.15

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Solution

The fourth proportional to 732.23, 1,096.21 and 423.15 is: 633.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.23 : 1,096.21 = 423.15 : x
  2. Step 2: Convert to fraction form
    732.23/1,096.21 = 423.15/x
  3. Step 3: Cross multiply
    732.23x = 1,096.21 × 423.15
  4. Step 4: Simplify right side
    732.23x = 463,861.26
  5. Step 5: Solve for x
    x = 463,861.26/732.23
  6. Step 6: Final answer
    x = 633.49

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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.