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Finding the Fourth Proportional to 480.03, 721.26 and 450.87

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Solution

The fourth proportional to 480.03, 721.26 and 450.87 is: 677.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.03 : 721.26 = 450.87 : x
  2. Step 2: Convert to fraction form
    480.03/721.26 = 450.87/x
  3. Step 3: Cross multiply
    480.03x = 721.26 × 450.87
  4. Step 4: Simplify right side
    480.03x = 325,194.50
  5. Step 5: Solve for x
    x = 325,194.50/480.03
  6. Step 6: Final answer
    x = 677.45

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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.