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Finding the Fourth Proportional to 967.68, 1,451.51 and 481.07

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Solution

The fourth proportional to 967.68, 1,451.51 and 481.07 is: 721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.68 : 1,451.51 = 481.07 : x
  2. Step 2: Convert to fraction form
    967.68/1,451.51 = 481.07/x
  3. Step 3: Cross multiply
    967.68x = 1,451.51 × 481.07
  4. Step 4: Simplify right side
    967.68x = 698,277.92
  5. Step 5: Solve for x
    x = 698,277.92/967.68
  6. Step 6: Final answer
    x = 721.60

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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.