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Finding the Fourth Proportional to 748.93, 1,033.53 and 417.38

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Solution

The fourth proportional to 748.93, 1,033.53 and 417.38 is: 575.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    748.93 : 1,033.53 = 417.38 : x
  2. Step 2: Convert to fraction form
    748.93/1,033.53 = 417.38/x
  3. Step 3: Cross multiply
    748.93x = 1,033.53 × 417.38
  4. Step 4: Simplify right side
    748.93x = 431,374.75
  5. Step 5: Solve for x
    x = 431,374.75/748.93
  6. Step 6: Final answer
    x = 575.99

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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.