Home / 1,226.30-1,839.56-404.64

Finding the Fourth Proportional to 1,226.30, 1,839.56 and 404.64

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Solution

The fourth proportional to 1,226.30, 1,839.56 and 404.64 is: 607.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226.30 : 1,839.56 = 404.64 : x
  2. Step 2: Convert to fraction form
    1,226.30/1,839.56 = 404.64/x
  3. Step 3: Cross multiply
    1,226.30x = 1,839.56 × 404.64
  4. Step 4: Simplify right side
    1,226.30x = 744,359.56
  5. Step 5: Solve for x
    x = 744,359.56/1,226.30
  6. Step 6: Final answer
    x = 607.00

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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.