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Finding the Fourth Proportional to 967.94, 1,451.16 and 480.61

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Solution

The fourth proportional to 967.94, 1,451.16 and 480.61 is: 720.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.94 : 1,451.16 = 480.61 : x
  2. Step 2: Convert to fraction form
    967.94/1,451.16 = 480.61/x
  3. Step 3: Cross multiply
    967.94x = 1,451.16 × 480.61
  4. Step 4: Simplify right side
    967.94x = 697,442.01
  5. Step 5: Solve for x
    x = 697,442.01/967.94
  6. Step 6: Final answer
    x = 720.55

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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.