Home / 1,231,857.78-1,847,790.94-378,923.64

Finding the Fourth Proportional to 1,231,857.78, 1,847,790.94 and 378,923.64

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Solution

The fourth proportional to 1,231,857.78, 1,847,790.94 and 378,923.64 is: 568,386.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,857.78 : 1,847,790.94 = 378,923.64 : x
  2. Step 2: Convert to fraction form
    1,231,857.78/1,847,790.94 = 378,923.64/x
  3. Step 3: Cross multiply
    1,231,857.78x = 1,847,790.94 × 378,923.64
  4. Step 4: Simplify right side
    1,231,857.78x = 700,171,668,943.82
  5. Step 5: Solve for x
    x = 700,171,668,943.82/1,231,857.78
  6. Step 6: Final answer
    x = 568,386.77

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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.