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Finding the Fourth Proportional to 494,711.66, 682,702.32 and 279,847.22

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Solution

The fourth proportional to 494,711.66, 682,702.32 and 279,847.22 is: 386,189.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,711.66 : 682,702.32 = 279,847.22 : x
  2. Step 2: Convert to fraction form
    494,711.66/682,702.32 = 279,847.22/x
  3. Step 3: Cross multiply
    494,711.66x = 682,702.32 × 279,847.22
  4. Step 4: Simplify right side
    494,711.66x = 191,052,346,339.55
  5. Step 5: Solve for x
    x = 191,052,346,339.55/494,711.66
  6. Step 6: Final answer
    x = 386,189.29

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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.