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Finding the Fourth Proportional to 625,932.52, 863,782.14 and 339,453.16

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Solution

The fourth proportional to 625,932.52, 863,782.14 and 339,453.16 is: 468,442.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,932.52 : 863,782.14 = 339,453.16 : x
  2. Step 2: Convert to fraction form
    625,932.52/863,782.14 = 339,453.16/x
  3. Step 3: Cross multiply
    625,932.52x = 863,782.14 × 339,453.16
  4. Step 4: Simplify right side
    625,932.52x = 293,213,576,974.56
  5. Step 5: Solve for x
    x = 293,213,576,974.56/625,932.52
  6. Step 6: Final answer
    x = 468,442.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.