Home / 787,736.88-1,086,704.64-465,231.60

Finding the Fourth Proportional to 787,736.88, 1,086,704.64 and 465,231.60

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Solution

The fourth proportional to 787,736.88, 1,086,704.64 and 465,231.60 is: 641,799.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,736.88 : 1,086,704.64 = 465,231.60 : x
  2. Step 2: Convert to fraction form
    787,736.88/1,086,704.64 = 465,231.60/x
  3. Step 3: Cross multiply
    787,736.88x = 1,086,704.64 × 465,231.60
  4. Step 4: Simplify right side
    787,736.88x = 505,569,338,394.62
  5. Step 5: Solve for x
    x = 505,569,338,394.62/787,736.88
  6. Step 6: Final answer
    x = 641,799.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.