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Finding the Fourth Proportional to 394,405.22, 591,607.84 and 360,190.82

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Solution

The fourth proportional to 394,405.22, 591,607.84 and 360,190.82 is: 540,286.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,405.22 : 591,607.84 = 360,190.82 : x
  2. Step 2: Convert to fraction form
    394,405.22/591,607.84 = 360,190.82/x
  3. Step 3: Cross multiply
    394,405.22x = 591,607.84 × 360,190.82
  4. Step 4: Simplify right side
    394,405.22x = 213,091,713,008.03
  5. Step 5: Solve for x
    x = 213,091,713,008.03/394,405.22
  6. Step 6: Final answer
    x = 540,286.24

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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.