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Finding the Fourth Proportional to 1,204,401, 1,662,073.38 and 667,857

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Solution

The fourth proportional to 1,204,401, 1,662,073.38 and 667,857 is: 921,642.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204,401 : 1,662,073.38 = 667,857 : x
  2. Step 2: Convert to fraction form
    1,204,401/1,662,073.38 = 667,857/x
  3. Step 3: Cross multiply
    1,204,401x = 1,662,073.38 × 667,857
  4. Step 4: Simplify right side
    1,204,401x = 1,110,027,341,346.66
  5. Step 5: Solve for x
    x = 1,110,027,341,346.66/1,204,401
  6. Step 6: Final answer
    x = 921,642.66

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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.