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Finding the Fourth Proportional to 391,846.22, 587,277.38 and 211,924.47

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Solution

The fourth proportional to 391,846.22, 587,277.38 and 211,924.47 is: 317,620.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,846.22 : 587,277.38 = 211,924.47 : x
  2. Step 2: Convert to fraction form
    391,846.22/587,277.38 = 211,924.47/x
  3. Step 3: Cross multiply
    391,846.22x = 587,277.38 × 211,924.47
  4. Step 4: Simplify right side
    391,846.22x = 124,458,450,231.59
  5. Step 5: Solve for x
    x = 124,458,450,231.59/391,846.22
  6. Step 6: Final answer
    x = 317,620.65

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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.