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Finding the Fourth Proportional to 733.53, 1,100.16 and 385.77

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Solution

The fourth proportional to 733.53, 1,100.16 and 385.77 is: 578.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    733.53 : 1,100.16 = 385.77 : x
  2. Step 2: Convert to fraction form
    733.53/1,100.16 = 385.77/x
  3. Step 3: Cross multiply
    733.53x = 1,100.16 × 385.77
  4. Step 4: Simplify right side
    733.53x = 424,408.72
  5. Step 5: Solve for x
    x = 424,408.72/733.53
  6. Step 6: Final answer
    x = 578.58

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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.