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Finding the Fourth Proportional to 484.63, 725.51 and 443.02

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Solution

The fourth proportional to 484.63, 725.51 and 443.02 is: 663.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.63 : 725.51 = 443.02 : x
  2. Step 2: Convert to fraction form
    484.63/725.51 = 443.02/x
  3. Step 3: Cross multiply
    484.63x = 725.51 × 443.02
  4. Step 4: Simplify right side
    484.63x = 321,413.60
  5. Step 5: Solve for x
    x = 321,413.60/484.63
  6. Step 6: Final answer
    x = 663.21

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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.