Home / 1,226.06-1,839.12-360.40

Finding the Fourth Proportional to 1,226.06, 1,839.12 and 360.40

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Solution

The fourth proportional to 1,226.06, 1,839.12 and 360.40 is: 540.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226.06 : 1,839.12 = 360.40 : x
  2. Step 2: Convert to fraction form
    1,226.06/1,839.12 = 360.40/x
  3. Step 3: Cross multiply
    1,226.06x = 1,839.12 × 360.40
  4. Step 4: Simplify right side
    1,226.06x = 662,818.85
  5. Step 5: Solve for x
    x = 662,818.85/1,226.06
  6. Step 6: Final answer
    x = 540.61

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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.