Home / 685,086.14-1,027,727.68-211,808.41

Finding the Fourth Proportional to 685,086.14, 1,027,727.68 and 211,808.41

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Solution

The fourth proportional to 685,086.14, 1,027,727.68 and 211,808.41 is: 317,743.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,086.14 : 1,027,727.68 = 211,808.41 : x
  2. Step 2: Convert to fraction form
    685,086.14/1,027,727.68 = 211,808.41/x
  3. Step 3: Cross multiply
    685,086.14x = 1,027,727.68 × 211,808.41
  4. Step 4: Simplify right side
    685,086.14x = 217,681,365,813.79
  5. Step 5: Solve for x
    x = 217,681,365,813.79/685,086.14
  6. Step 6: Final answer
    x = 317,743.06

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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.