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Finding the Fourth Proportional to 584.26, 874.37 and 422.26

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Solution

The fourth proportional to 584.26, 874.37 and 422.26 is: 631.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.26 : 874.37 = 422.26 : x
  2. Step 2: Convert to fraction form
    584.26/874.37 = 422.26/x
  3. Step 3: Cross multiply
    584.26x = 874.37 × 422.26
  4. Step 4: Simplify right side
    584.26x = 369,209.36
  5. Step 5: Solve for x
    x = 369,209.36/584.26
  6. Step 6: Final answer
    x = 631.93

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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.