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Finding the Fourth Proportional to 574.88, 793.70 and 378.73

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Solution

The fourth proportional to 574.88, 793.70 and 378.73 is: 522.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.88 : 793.70 = 378.73 : x
  2. Step 2: Convert to fraction form
    574.88/793.70 = 378.73/x
  3. Step 3: Cross multiply
    574.88x = 793.70 × 378.73
  4. Step 4: Simplify right side
    574.88x = 300,592.14
  5. Step 5: Solve for x
    x = 300,592.14/574.88
  6. Step 6: Final answer
    x = 522.88

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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.