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Finding the Fourth Proportional to 541.24, 811.74 and 324.76

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Solution

The fourth proportional to 541.24, 811.74 and 324.76 is: 487.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.24 : 811.74 = 324.76 : x
  2. Step 2: Convert to fraction form
    541.24/811.74 = 324.76/x
  3. Step 3: Cross multiply
    541.24x = 811.74 × 324.76
  4. Step 4: Simplify right side
    541.24x = 263,620.68
  5. Step 5: Solve for x
    x = 263,620.68/541.24
  6. Step 6: Final answer
    x = 487.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.