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Finding the Fourth Proportional to 892,847.04, 1,339,242.48 and 218,930.40

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Solution

The fourth proportional to 892,847.04, 1,339,242.48 and 218,930.40 is: 328,388.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,847.04 : 1,339,242.48 = 218,930.40 : x
  2. Step 2: Convert to fraction form
    892,847.04/1,339,242.48 = 218,930.40/x
  3. Step 3: Cross multiply
    892,847.04x = 1,339,242.48 × 218,930.40
  4. Step 4: Simplify right side
    892,847.04x = 293,200,891,843.39
  5. Step 5: Solve for x
    x = 293,200,891,843.39/892,847.04
  6. Step 6: Final answer
    x = 328,388.71

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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.