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Finding the Fourth Proportional to 839,871, 1,259,933.40 and 271,062

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Solution

The fourth proportional to 839,871, 1,259,933.40 and 271,062 is: 406,633.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,871 : 1,259,933.40 = 271,062 : x
  2. Step 2: Convert to fraction form
    839,871/1,259,933.40 = 271,062/x
  3. Step 3: Cross multiply
    839,871x = 1,259,933.40 × 271,062
  4. Step 4: Simplify right side
    839,871x = 341,520,067,270.80
  5. Step 5: Solve for x
    x = 341,520,067,270.80/839,871
  6. Step 6: Final answer
    x = 406,633.96

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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.