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Finding the Fourth Proportional to 1,208.74, 1,814.07 and 550.67

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Solution

The fourth proportional to 1,208.74, 1,814.07 and 550.67 is: 826.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208.74 : 1,814.07 = 550.67 : x
  2. Step 2: Convert to fraction form
    1,208.74/1,814.07 = 550.67/x
  3. Step 3: Cross multiply
    1,208.74x = 1,814.07 × 550.67
  4. Step 4: Simplify right side
    1,208.74x = 998,953.93
  5. Step 5: Solve for x
    x = 998,953.93/1,208.74
  6. Step 6: Final answer
    x = 826.44

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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.