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Finding the Fourth Proportional to 404,375.40, 606,692.70 and 271,405.80

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Solution

The fourth proportional to 404,375.40, 606,692.70 and 271,405.80 is: 407,195.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,375.40 : 606,692.70 = 271,405.80 : x
  2. Step 2: Convert to fraction form
    404,375.40/606,692.70 = 271,405.80/x
  3. Step 3: Cross multiply
    404,375.40x = 606,692.70 × 271,405.80
  4. Step 4: Simplify right side
    404,375.40x = 164,659,917,597.66
  5. Step 5: Solve for x
    x = 164,659,917,597.66/404,375.40
  6. Step 6: Final answer
    x = 407,195.68

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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.