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Finding the Fourth Proportional to 578.22, 867.51 and 475.26

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Solution

The fourth proportional to 578.22, 867.51 and 475.26 is: 713.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    578.22 : 867.51 = 475.26 : x
  2. Step 2: Convert to fraction form
    578.22/867.51 = 475.26/x
  3. Step 3: Cross multiply
    578.22x = 867.51 × 475.26
  4. Step 4: Simplify right side
    578.22x = 412,292.80
  5. Step 5: Solve for x
    x = 412,292.80/578.22
  6. Step 6: Final answer
    x = 713.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.