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Finding the Fourth Proportional to 483.37, 721.56 and 450.56

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Solution

The fourth proportional to 483.37, 721.56 and 450.56 is: 672.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.37 : 721.56 = 450.56 : x
  2. Step 2: Convert to fraction form
    483.37/721.56 = 450.56/x
  3. Step 3: Cross multiply
    483.37x = 721.56 × 450.56
  4. Step 4: Simplify right side
    483.37x = 325,107.03
  5. Step 5: Solve for x
    x = 325,107.03/483.37
  6. Step 6: Final answer
    x = 672.59

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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.