Home / 1,208,174.36-1,667,286.84-664,345.22

Finding the Fourth Proportional to 1,208,174.36, 1,667,286.84 and 664,345.22

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Solution

The fourth proportional to 1,208,174.36, 1,667,286.84 and 664,345.22 is: 916,799.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,174.36 : 1,667,286.84 = 664,345.22 : x
  2. Step 2: Convert to fraction form
    1,208,174.36/1,667,286.84 = 664,345.22/x
  3. Step 3: Cross multiply
    1,208,174.36x = 1,667,286.84 × 664,345.22
  4. Step 4: Simplify right side
    1,208,174.36x = 1,107,654,042,522.90
  5. Step 5: Solve for x
    x = 1,107,654,042,522.90/1,208,174.36
  6. Step 6: Final answer
    x = 916,799.83

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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.