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Finding the Fourth Proportional to 572.46, 789.92 and 373.20

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Solution

The fourth proportional to 572.46, 789.92 and 373.20 is: 514.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.46 : 789.92 = 373.20 : x
  2. Step 2: Convert to fraction form
    572.46/789.92 = 373.20/x
  3. Step 3: Cross multiply
    572.46x = 789.92 × 373.20
  4. Step 4: Simplify right side
    572.46x = 294,792.33
  5. Step 5: Solve for x
    x = 294,792.33/572.46
  6. Step 6: Final answer
    x = 514.96

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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.