Home / 1,236.11-1,853.95-414.27

Finding the Fourth Proportional to 1,236.11, 1,853.95 and 414.27

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Solution

The fourth proportional to 1,236.11, 1,853.95 and 414.27 is: 621.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236.11 : 1,853.95 = 414.27 : x
  2. Step 2: Convert to fraction form
    1,236.11/1,853.95 = 414.27/x
  3. Step 3: Cross multiply
    1,236.11x = 1,853.95 × 414.27
  4. Step 4: Simplify right side
    1,236.11x = 768,035.87
  5. Step 5: Solve for x
    x = 768,035.87/1,236.11
  6. Step 6: Final answer
    x = 621.33

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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.