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Finding the Fourth Proportional to 748.94, 1,033.24 and 454.10

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Solution

The fourth proportional to 748.94, 1,033.24 and 454.10 is: 626.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    748.94 : 1,033.24 = 454.10 : x
  2. Step 2: Convert to fraction form
    748.94/1,033.24 = 454.10/x
  3. Step 3: Cross multiply
    748.94x = 1,033.24 × 454.10
  4. Step 4: Simplify right side
    748.94x = 469,194.28
  5. Step 5: Solve for x
    x = 469,194.28/748.94
  6. Step 6: Final answer
    x = 626.48

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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.