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Finding the Fourth Proportional to 3,111,379, 4,667,855.82 and 867,517

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Solution

The fourth proportional to 3,111,379, 4,667,855.82 and 867,517 is: 1,301,495.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111,379 : 4,667,855.82 = 867,517 : x
  2. Step 2: Convert to fraction form
    3,111,379/4,667,855.82 = 867,517/x
  3. Step 3: Cross multiply
    3,111,379x = 4,667,855.82 × 867,517
  4. Step 4: Simplify right side
    3,111,379x = 4,049,444,277,398.94
  5. Step 5: Solve for x
    x = 4,049,444,277,398.94/3,111,379
  6. Step 6: Final answer
    x = 1,301,495.02

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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.