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Finding the Fourth Proportional to 750.26, 1,034.72 and 564.20

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Solution

The fourth proportional to 750.26, 1,034.72 and 564.20 is: 778.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    750.26 : 1,034.72 = 564.20 : x
  2. Step 2: Convert to fraction form
    750.26/1,034.72 = 564.20/x
  3. Step 3: Cross multiply
    750.26x = 1,034.72 × 564.20
  4. Step 4: Simplify right side
    750.26x = 583,789.02
  5. Step 5: Solve for x
    x = 583,789.02/750.26
  6. Step 6: Final answer
    x = 778.12

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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.