Home / 681,898.85-1,022,811.45-208,584.21

Finding the Fourth Proportional to 681,898.85, 1,022,811.45 and 208,584.21

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Solution

The fourth proportional to 681,898.85, 1,022,811.45 and 208,584.21 is: 312,865.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,898.85 : 1,022,811.45 = 208,584.21 : x
  2. Step 2: Convert to fraction form
    681,898.85/1,022,811.45 = 208,584.21/x
  3. Step 3: Cross multiply
    681,898.85x = 1,022,811.45 × 208,584.21
  4. Step 4: Simplify right side
    681,898.85x = 213,342,322,503.84
  5. Step 5: Solve for x
    x = 213,342,322,503.84/681,898.85
  6. Step 6: Final answer
    x = 312,865.05

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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.