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Finding the Fourth Proportional to 609,351.91, 840,904.35 and 351,227.12

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Solution

The fourth proportional to 609,351.91, 840,904.35 and 351,227.12 is: 484,692.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,351.91 : 840,904.35 = 351,227.12 : x
  2. Step 2: Convert to fraction form
    609,351.91/840,904.35 = 351,227.12/x
  3. Step 3: Cross multiply
    609,351.91x = 840,904.35 × 351,227.12
  4. Step 4: Simplify right side
    609,351.91x = 295,348,407,524.35
  5. Step 5: Solve for x
    x = 295,348,407,524.35/609,351.91
  6. Step 6: Final answer
    x = 484,692.68

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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.