Home / 712,103.09-1,067,416.52-445,250.82

Finding the Fourth Proportional to 712,103.09, 1,067,416.52 and 445,250.82

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Solution

The fourth proportional to 712,103.09, 1,067,416.52 and 445,250.82 is: 667,414.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,103.09 : 1,067,416.52 = 445,250.82 : x
  2. Step 2: Convert to fraction form
    712,103.09/1,067,416.52 = 445,250.82/x
  3. Step 3: Cross multiply
    712,103.09x = 1,067,416.52 × 445,250.82
  4. Step 4: Simplify right side
    712,103.09x = 475,268,080,811.55
  5. Step 5: Solve for x
    x = 475,268,080,811.55/712,103.09
  6. Step 6: Final answer
    x = 667,414.71

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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.