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Finding the Fourth Proportional to 404,384.40, 605,410.20 and 271,414.80

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Solution

The fourth proportional to 404,384.40, 605,410.20 and 271,414.80 is: 406,339.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,384.40 : 605,410.20 = 271,414.80 : x
  2. Step 2: Convert to fraction form
    404,384.40/605,410.20 = 271,414.80/x
  3. Step 3: Cross multiply
    404,384.40x = 605,410.20 × 271,414.80
  4. Step 4: Simplify right side
    404,384.40x = 164,317,288,350.96
  5. Step 5: Solve for x
    x = 164,317,288,350.96/404,384.40
  6. Step 6: Final answer
    x = 406,339.34

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1.5x scale

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.