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Finding the Fourth Proportional to 609,670.06, 840,796.41 and 394,585.90

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Solution

The fourth proportional to 609,670.06, 840,796.41 and 394,585.90 is: 544,173.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,670.06 : 840,796.41 = 394,585.90 : x
  2. Step 2: Convert to fraction form
    609,670.06/840,796.41 = 394,585.90/x
  3. Step 3: Cross multiply
    609,670.06x = 840,796.41 × 394,585.90
  4. Step 4: Simplify right side
    609,670.06x = 331,766,408,156.62
  5. Step 5: Solve for x
    x = 331,766,408,156.62/609,670.06
  6. Step 6: Final answer
    x = 544,173.69

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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.