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Finding the Fourth Proportional to 625,522.74, 863,222.91 and 339,042.54

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Solution

The fourth proportional to 625,522.74, 863,222.91 and 339,042.54 is: 467,879.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,522.74 : 863,222.91 = 339,042.54 : x
  2. Step 2: Convert to fraction form
    625,522.74/863,222.91 = 339,042.54/x
  3. Step 3: Cross multiply
    625,522.74x = 863,222.91 × 339,042.54
  4. Step 4: Simplify right side
    625,522.74x = 292,669,287,992.59
  5. Step 5: Solve for x
    x = 292,669,287,992.59/625,522.74
  6. Step 6: Final answer
    x = 467,879.53

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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.