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Finding the Fourth Proportional to 574.51, 792.81 and 325.87

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Solution

The fourth proportional to 574.51, 792.81 and 325.87 is: 449.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.51 : 792.81 = 325.87 : x
  2. Step 2: Convert to fraction form
    574.51/792.81 = 325.87/x
  3. Step 3: Cross multiply
    574.51x = 792.81 × 325.87
  4. Step 4: Simplify right side
    574.51x = 258,352.99
  5. Step 5: Solve for x
    x = 258,352.99/574.51
  6. Step 6: Final answer
    x = 449.69

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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.