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Finding the Fourth Proportional to 625,467.82, 863,149.86 and 338,992.69

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Solution

The fourth proportional to 625,467.82, 863,149.86 and 338,992.69 is: 467,812.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,467.82 : 863,149.86 = 338,992.69 : x
  2. Step 2: Convert to fraction form
    625,467.82/863,149.86 = 338,992.69/x
  3. Step 3: Cross multiply
    625,467.82x = 863,149.86 × 338,992.69
  4. Step 4: Simplify right side
    625,467.82x = 292,601,492,914.52
  5. Step 5: Solve for x
    x = 292,601,492,914.52/625,467.82
  6. Step 6: Final answer
    x = 467,812.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.