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Finding the Fourth Proportional to 1,325,062, 1,987,593 and 327,790

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Solution

The fourth proportional to 1,325,062, 1,987,593 and 327,790 is: 491,685

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,062 : 1,987,593 = 327,790 : x
  2. Step 2: Convert to fraction form
    1,325,062/1,987,593 = 327,790/x
  3. Step 3: Cross multiply
    1,325,062x = 1,987,593 × 327,790
  4. Step 4: Simplify right side
    1,325,062x = 651,513,109,470
  5. Step 5: Solve for x
    x = 651,513,109,470/1,325,062
  6. Step 6: Final answer
    x = 491,685

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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.