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Finding the Fourth Proportional to 480,964.62, 721,446.22 and 192,906.21

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Solution

The fourth proportional to 480,964.62, 721,446.22 and 192,906.21 is: 289,359.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,964.62 : 721,446.22 = 192,906.21 : x
  2. Step 2: Convert to fraction form
    480,964.62/721,446.22 = 192,906.21/x
  3. Step 3: Cross multiply
    480,964.62x = 721,446.22 × 192,906.21
  4. Step 4: Simplify right side
    480,964.62x = 139,171,456,019.03
  5. Step 5: Solve for x
    x = 139,171,456,019.03/480,964.62
  6. Step 6: Final answer
    x = 289,359.03

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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.