Home / 1,378,496.41-2,067,745.52-431,940.94

Finding the Fourth Proportional to 1,378,496.41, 2,067,745.52 and 431,940.94

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Solution

The fourth proportional to 1,378,496.41, 2,067,745.52 and 431,940.94 is: 647,911.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,496.41 : 2,067,745.52 = 431,940.94 : x
  2. Step 2: Convert to fraction form
    1,378,496.41/2,067,745.52 = 431,940.94/x
  3. Step 3: Cross multiply
    1,378,496.41x = 2,067,745.52 × 431,940.94
  4. Step 4: Simplify right side
    1,378,496.41x = 893,143,939,500.08
  5. Step 5: Solve for x
    x = 893,143,939,500.08/1,378,496.41
  6. Step 6: Final answer
    x = 647,911.69

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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.