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Finding the Fourth Proportional to 572.04, 789.29 and 372.85

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Solution

The fourth proportional to 572.04, 789.29 and 372.85 is: 514.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.04 : 789.29 = 372.85 : x
  2. Step 2: Convert to fraction form
    572.04/789.29 = 372.85/x
  3. Step 3: Cross multiply
    572.04x = 789.29 × 372.85
  4. Step 4: Simplify right side
    572.04x = 294,282.94
  5. Step 5: Solve for x
    x = 294,282.94/572.04
  6. Step 6: Final answer
    x = 514.44

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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.