Home / 1,420,926.84-2,131,391.62-396,216.18

Finding the Fourth Proportional to 1,420,926.84, 2,131,391.62 and 396,216.18

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Solution

The fourth proportional to 1,420,926.84, 2,131,391.62 and 396,216.18 is: 594,324.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,926.84 : 2,131,391.62 = 396,216.18 : x
  2. Step 2: Convert to fraction form
    1,420,926.84/2,131,391.62 = 396,216.18/x
  3. Step 3: Cross multiply
    1,420,926.84x = 2,131,391.62 × 396,216.18
  4. Step 4: Simplify right side
    1,420,926.84x = 844,491,845,760.41
  5. Step 5: Solve for x
    x = 844,491,845,760.41/1,420,926.84
  6. Step 6: Final answer
    x = 594,324.65

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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.