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Finding the Fourth Proportional to 847.26, 1,268.01 and 481.50

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Solution

The fourth proportional to 847.26, 1,268.01 and 481.50 is: 720.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    847.26 : 1,268.01 = 481.50 : x
  2. Step 2: Convert to fraction form
    847.26/1,268.01 = 481.50/x
  3. Step 3: Cross multiply
    847.26x = 1,268.01 × 481.50
  4. Step 4: Simplify right side
    847.26x = 610,546.82
  5. Step 5: Solve for x
    x = 610,546.82/847.26
  6. Step 6: Final answer
    x = 720.61

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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.