Home / 1,420,708.68-2,131,046.82-409,797.29

Finding the Fourth Proportional to 1,420,708.68, 2,131,046.82 and 409,797.29

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Solution

The fourth proportional to 1,420,708.68, 2,131,046.82 and 409,797.29 is: 614,691.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,708.68 : 2,131,046.82 = 409,797.29 : x
  2. Step 2: Convert to fraction form
    1,420,708.68/2,131,046.82 = 409,797.29/x
  3. Step 3: Cross multiply
    1,420,708.68x = 2,131,046.82 × 409,797.29
  4. Step 4: Simplify right side
    1,420,708.68x = 873,297,217,026.74
  5. Step 5: Solve for x
    x = 873,297,217,026.74/1,420,708.68
  6. Step 6: Final answer
    x = 614,691.27

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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.