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Finding the Fourth Proportional to 483,906, 667,790.28 and 271,938

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Solution

The fourth proportional to 483,906, 667,790.28 and 271,938 is: 375,274.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,906 : 667,790.28 = 271,938 : x
  2. Step 2: Convert to fraction form
    483,906/667,790.28 = 271,938/x
  3. Step 3: Cross multiply
    483,906x = 667,790.28 × 271,938
  4. Step 4: Simplify right side
    483,906x = 181,597,553,162.64
  5. Step 5: Solve for x
    x = 181,597,553,162.64/483,906
  6. Step 6: Final answer
    x = 375,274.44

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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.