Home / 1,226.55-1,836.84-609.39

Finding the Fourth Proportional to 1,226.55, 1,836.84 and 609.39

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Solution

The fourth proportional to 1,226.55, 1,836.84 and 609.39 is: 912.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226.55 : 1,836.84 = 609.39 : x
  2. Step 2: Convert to fraction form
    1,226.55/1,836.84 = 609.39/x
  3. Step 3: Cross multiply
    1,226.55x = 1,836.84 × 609.39
  4. Step 4: Simplify right side
    1,226.55x = 1,119,351.93
  5. Step 5: Solve for x
    x = 1,119,351.93/1,226.55
  6. Step 6: Final answer
    x = 912.60

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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.