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Finding the Fourth Proportional to 988,171.38, 1,481,894 and 339,563.64

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Solution

The fourth proportional to 988,171.38, 1,481,894 and 339,563.64 is: 509,220.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,171.38 : 1,481,894 = 339,563.64 : x
  2. Step 2: Convert to fraction form
    988,171.38/1,481,894 = 339,563.64/x
  3. Step 3: Cross multiply
    988,171.38x = 1,481,894 × 339,563.64
  4. Step 4: Simplify right side
    988,171.38x = 503,197,320,734.16
  5. Step 5: Solve for x
    x = 503,197,320,734.16/988,171.38
  6. Step 6: Final answer
    x = 509,220.70

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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.