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Finding the Fourth Proportional to 736.53, 1,104.76 and 285.69

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Solution

The fourth proportional to 736.53, 1,104.76 and 285.69 is: 428.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    736.53 : 1,104.76 = 285.69 : x
  2. Step 2: Convert to fraction form
    736.53/1,104.76 = 285.69/x
  3. Step 3: Cross multiply
    736.53x = 1,104.76 × 285.69
  4. Step 4: Simplify right side
    736.53x = 315,618.88
  5. Step 5: Solve for x
    x = 315,618.88/736.53
  6. Step 6: Final answer
    x = 428.52

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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.