Home / 681,789.54-1,022,684.40-208,474.92

Finding the Fourth Proportional to 681,789.54, 1,022,684.40 and 208,474.92

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Solution

The fourth proportional to 681,789.54, 1,022,684.40 and 208,474.92 is: 312,712.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,789.54 : 1,022,684.40 = 208,474.92 : x
  2. Step 2: Convert to fraction form
    681,789.54/1,022,684.40 = 208,474.92/x
  3. Step 3: Cross multiply
    681,789.54x = 1,022,684.40 × 208,474.92
  4. Step 4: Simplify right side
    681,789.54x = 213,204,048,475.25
  5. Step 5: Solve for x
    x = 213,204,048,475.25/681,789.54
  6. Step 6: Final answer
    x = 312,712.41

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Double scale
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Similar ratio
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1.5x scale

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.