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Finding the Fourth Proportional to 481.24, 718.37 and 432.52

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Solution

The fourth proportional to 481.24, 718.37 and 432.52 is: 645.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.24 : 718.37 = 432.52 : x
  2. Step 2: Convert to fraction form
    481.24/718.37 = 432.52/x
  3. Step 3: Cross multiply
    481.24x = 718.37 × 432.52
  4. Step 4: Simplify right side
    481.24x = 310,709.39
  5. Step 5: Solve for x
    x = 310,709.39/481.24
  6. Step 6: Final answer
    x = 645.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.