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Finding the Fourth Proportional to 572.62, 789.06 and 484.06

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Solution

The fourth proportional to 572.62, 789.06 and 484.06 is: 667.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.62 : 789.06 = 484.06 : x
  2. Step 2: Convert to fraction form
    572.62/789.06 = 484.06/x
  3. Step 3: Cross multiply
    572.62x = 789.06 × 484.06
  4. Step 4: Simplify right side
    572.62x = 381,952.38
  5. Step 5: Solve for x
    x = 381,952.38/572.62
  6. Step 6: Final answer
    x = 667.03

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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.