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Finding the Third Proportional to 389,611.50 and 582,847.50

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Solution

The third proportional to 389,611.50 and 582,847.50 is: 871,922.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,611.50 : 582,847.50 = 582,847.50 : x
  2. Step 2: Convert to fraction form
    389,611.50/582,847.50 = 582,847.50/x
  3. Step 3: Cross multiply
    389,611.50x = 582,847.50 × 582,847.50
  4. Step 4: Simplify right side
    389,611.50x = 339,711,208,256.25
  5. Step 5: Solve for x
    x = 339,711,208,256.25/389,611.50
  6. Step 6: Final answer
    x = 871,922.95

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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.