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Finding the Fourth Proportional to 615,309.42, 923,375.97 and 215,952.06

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Solution

The fourth proportional to 615,309.42, 923,375.97 and 215,952.06 is: 324,072.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,309.42 : 923,375.97 = 215,952.06 : x
  2. Step 2: Convert to fraction form
    615,309.42/923,375.97 = 215,952.06/x
  3. Step 3: Cross multiply
    615,309.42x = 923,375.97 × 215,952.06
  4. Step 4: Simplify right side
    615,309.42x = 199,404,942,876.00
  5. Step 5: Solve for x
    x = 199,404,942,876.00/615,309.42
  6. Step 6: Final answer
    x = 324,072.63

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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.