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Finding the Fourth Proportional to 1,204,389, 1,662,056.82 and 667,845

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Solution

The fourth proportional to 1,204,389, 1,662,056.82 and 667,845 is: 921,626.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204,389 : 1,662,056.82 = 667,845 : x
  2. Step 2: Convert to fraction form
    1,204,389/1,662,056.82 = 667,845/x
  3. Step 3: Cross multiply
    1,204,389x = 1,662,056.82 × 667,845
  4. Step 4: Simplify right side
    1,204,389x = 1,109,996,336,952.90
  5. Step 5: Solve for x
    x = 1,109,996,336,952.90/1,204,389
  6. Step 6: Final answer
    x = 921,626.10

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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.