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Finding the Fourth Proportional to 574.31, 792.46 and 325.63

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Solution

The fourth proportional to 574.31, 792.46 and 325.63 is: 449.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.31 : 792.46 = 325.63 : x
  2. Step 2: Convert to fraction form
    574.31/792.46 = 325.63/x
  3. Step 3: Cross multiply
    574.31x = 792.46 × 325.63
  4. Step 4: Simplify right side
    574.31x = 258,048.75
  5. Step 5: Solve for x
    x = 258,048.75/574.31
  6. Step 6: Final answer
    x = 449.32

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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.