Home / 1,226.00-1,839.28-404.22

Finding the Fourth Proportional to 1,226.00, 1,839.28 and 404.22

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Solution

The fourth proportional to 1,226.00, 1,839.28 and 404.22 is: 606.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226.00 : 1,839.28 = 404.22 : x
  2. Step 2: Convert to fraction form
    1,226.00/1,839.28 = 404.22/x
  3. Step 3: Cross multiply
    1,226.00x = 1,839.28 × 404.22
  4. Step 4: Simplify right side
    1,226.00x = 743,472.75
  5. Step 5: Solve for x
    x = 743,472.75/1,226.00
  6. Step 6: Final answer
    x = 606.42

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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.