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Finding the Fourth Proportional to 394,771.93, 591,745.77 and 286,439.57

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Solution

The fourth proportional to 394,771.93, 591,745.77 and 286,439.57 is: 429,360.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,771.93 : 591,745.77 = 286,439.57 : x
  2. Step 2: Convert to fraction form
    394,771.93/591,745.77 = 286,439.57/x
  3. Step 3: Cross multiply
    394,771.93x = 591,745.77 × 286,439.57
  4. Step 4: Simplify right side
    394,771.93x = 169,499,406,497.01
  5. Step 5: Solve for x
    x = 169,499,406,497.01/394,771.93
  6. Step 6: Final answer
    x = 429,360.33

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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.