Home / 1,338,326.42-1,846,440.78-855,174.38

Finding the Fourth Proportional to 1,338,326.42, 1,846,440.78 and 855,174.38

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Solution

The fourth proportional to 1,338,326.42, 1,846,440.78 and 855,174.38 is: 1,179,853.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,326.42 : 1,846,440.78 = 855,174.38 : x
  2. Step 2: Convert to fraction form
    1,338,326.42/1,846,440.78 = 855,174.38/x
  3. Step 3: Cross multiply
    1,338,326.42x = 1,846,440.78 × 855,174.38
  4. Step 4: Simplify right side
    1,338,326.42x = 1,579,028,849,243.22
  5. Step 5: Solve for x
    x = 1,579,028,849,243.22/1,338,326.42
  6. Step 6: Final answer
    x = 1,179,853.30

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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.