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Finding the Fourth Proportional to 574.30, 792.56 and 325.63

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Solution

The fourth proportional to 574.30, 792.56 and 325.63 is: 449.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.30 : 792.56 = 325.63 : x
  2. Step 2: Convert to fraction form
    574.30/792.56 = 325.63/x
  3. Step 3: Cross multiply
    574.30x = 792.56 × 325.63
  4. Step 4: Simplify right side
    574.30x = 258,075.72
  5. Step 5: Solve for x
    x = 258,075.72/574.30
  6. Step 6: Final answer
    x = 449.38

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Double scale
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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.