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Finding the Fourth Proportional to 484.80, 673.68 and 482.88

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Solution

The fourth proportional to 484.80, 673.68 and 482.88 is: 671.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.80 : 673.68 = 482.88 : x
  2. Step 2: Convert to fraction form
    484.80/673.68 = 482.88/x
  3. Step 3: Cross multiply
    484.80x = 673.68 × 482.88
  4. Step 4: Simplify right side
    484.80x = 325,306.60
  5. Step 5: Solve for x
    x = 325,306.60/484.80
  6. Step 6: Final answer
    x = 671.01

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.