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Finding the Fourth Proportional to 748.57, 1,033.26 and 608.58

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Solution

The fourth proportional to 748.57, 1,033.26 and 608.58 is: 840.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    748.57 : 1,033.26 = 608.58 : x
  2. Step 2: Convert to fraction form
    748.57/1,033.26 = 608.58/x
  3. Step 3: Cross multiply
    748.57x = 1,033.26 × 608.58
  4. Step 4: Simplify right side
    748.57x = 628,821.37
  5. Step 5: Solve for x
    x = 628,821.37/748.57
  6. Step 6: Final answer
    x = 840.03

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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.