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Finding the Fourth Proportional to 515,523.50, 772,250.52 and 262,793.78

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Solution

The fourth proportional to 515,523.50, 772,250.52 and 262,793.78 is: 393,663.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,523.50 : 772,250.52 = 262,793.78 : x
  2. Step 2: Convert to fraction form
    515,523.50/772,250.52 = 262,793.78/x
  3. Step 3: Cross multiply
    515,523.50x = 772,250.52 × 262,793.78
  4. Step 4: Simplify right side
    515,523.50x = 202,942,633,257.77
  5. Step 5: Solve for x
    x = 202,942,633,257.77/515,523.50
  6. Step 6: Final answer
    x = 393,663.20

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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.