Home / 1,305,422.51-1,958,147.28-394,612.56

Finding the Fourth Proportional to 1,305,422.51, 1,958,147.28 and 394,612.56

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Solution

The fourth proportional to 1,305,422.51, 1,958,147.28 and 394,612.56 is: 591,922.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,422.51 : 1,958,147.28 = 394,612.56 : x
  2. Step 2: Convert to fraction form
    1,305,422.51/1,958,147.28 = 394,612.56/x
  3. Step 3: Cross multiply
    1,305,422.51x = 1,958,147.28 × 394,612.56
  4. Step 4: Simplify right side
    1,305,422.51x = 772,709,511,017.84
  5. Step 5: Solve for x
    x = 772,709,511,017.84/1,305,422.51
  6. Step 6: Final answer
    x = 591,922.93

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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.