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Finding the Fourth Proportional to 748.55, 1,033.05 and 453.84

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Solution

The fourth proportional to 748.55, 1,033.05 and 453.84 is: 626.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    748.55 : 1,033.05 = 453.84 : x
  2. Step 2: Convert to fraction form
    748.55/1,033.05 = 453.84/x
  3. Step 3: Cross multiply
    748.55x = 1,033.05 × 453.84
  4. Step 4: Simplify right side
    748.55x = 468,839.41
  5. Step 5: Solve for x
    x = 468,839.41/748.55
  6. Step 6: Final answer
    x = 626.33

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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.