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Finding the Fourth Proportional to 547,793.69, 755,959.03 and 306,086.45

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Solution

The fourth proportional to 547,793.69, 755,959.03 and 306,086.45 is: 422,401.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,793.69 : 755,959.03 = 306,086.45 : x
  2. Step 2: Convert to fraction form
    547,793.69/755,959.03 = 306,086.45/x
  3. Step 3: Cross multiply
    547,793.69x = 755,959.03 × 306,086.45
  4. Step 4: Simplify right side
    547,793.69x = 231,388,811,293.13
  5. Step 5: Solve for x
    x = 231,388,811,293.13/547,793.69
  6. Step 6: Final answer
    x = 422,401.39

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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.