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Finding the Fourth Proportional to 572.33, 789.74 and 323.66

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Solution

The fourth proportional to 572.33, 789.74 and 323.66 is: 446.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.33 : 789.74 = 323.66 : x
  2. Step 2: Convert to fraction form
    572.33/789.74 = 323.66/x
  3. Step 3: Cross multiply
    572.33x = 789.74 × 323.66
  4. Step 4: Simplify right side
    572.33x = 255,601.68
  5. Step 5: Solve for x
    x = 255,601.68/572.33
  6. Step 6: Final answer
    x = 446.60

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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.