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Finding the Fourth Proportional to 863,351.10, 1,294,288.25 and 331,254

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Solution

The fourth proportional to 863,351.10, 1,294,288.25 and 331,254 is: 496,597.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,351.10 : 1,294,288.25 = 331,254 : x
  2. Step 2: Convert to fraction form
    863,351.10/1,294,288.25 = 331,254/x
  3. Step 3: Cross multiply
    863,351.10x = 1,294,288.25 × 331,254
  4. Step 4: Simplify right side
    863,351.10x = 428,738,158,309.23
  5. Step 5: Solve for x
    x = 428,738,158,309.23/863,351.10
  6. Step 6: Final answer
    x = 496,597.69

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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.