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Finding the Fourth Proportional to 681,884.76, 1,022,662.84 and 208,574.20

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Solution

The fourth proportional to 681,884.76, 1,022,662.84 and 208,574.20 is: 312,811.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,884.76 : 1,022,662.84 = 208,574.20 : x
  2. Step 2: Convert to fraction form
    681,884.76/1,022,662.84 = 208,574.20/x
  3. Step 3: Cross multiply
    681,884.76x = 1,022,662.84 × 208,574.20
  4. Step 4: Simplify right side
    681,884.76x = 213,301,083,722.73
  5. Step 5: Solve for x
    x = 213,301,083,722.73/681,884.76
  6. Step 6: Final answer
    x = 312,811.04

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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.