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Finding the Fourth Proportional to 1,459,378, 2,189,067 and 394,338.32

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Solution

The fourth proportional to 1,459,378, 2,189,067 and 394,338.32 is: 591,507.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,459,378 : 2,189,067 = 394,338.32 : x
  2. Step 2: Convert to fraction form
    1,459,378/2,189,067 = 394,338.32/x
  3. Step 3: Cross multiply
    1,459,378x = 2,189,067 × 394,338.32
  4. Step 4: Simplify right side
    1,459,378x = 863,233,003,147.44
  5. Step 5: Solve for x
    x = 863,233,003,147.44/1,459,378
  6. Step 6: Final answer
    x = 591,507.48

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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.