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Finding the Fourth Proportional to 624.22, 855.17 and 600.85

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Solution

The fourth proportional to 624.22, 855.17 and 600.85 is: 823.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.22 : 855.17 = 600.85 : x
  2. Step 2: Convert to fraction form
    624.22/855.17 = 600.85/x
  3. Step 3: Cross multiply
    624.22x = 855.17 × 600.85
  4. Step 4: Simplify right side
    624.22x = 513,826.81
  5. Step 5: Solve for x
    x = 513,826.81/624.22
  6. Step 6: Final answer
    x = 823.15

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.