Home / 681,408.96-1,022,268.96-208,161.60

Finding the Fourth Proportional to 681,408.96, 1,022,268.96 and 208,161.60

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Solution

The fourth proportional to 681,408.96, 1,022,268.96 and 208,161.60 is: 312,289.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,408.96 : 1,022,268.96 = 208,161.60 : x
  2. Step 2: Convert to fraction form
    681,408.96/1,022,268.96 = 208,161.60/x
  3. Step 3: Cross multiply
    681,408.96x = 1,022,268.96 × 208,161.60
  4. Step 4: Simplify right side
    681,408.96x = 212,797,142,343.94
  5. Step 5: Solve for x
    x = 212,797,142,343.94/681,408.96
  6. Step 6: Final answer
    x = 312,289.91

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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.