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Finding the Third Proportional to 612,360 and 919,188

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Solution

The third proportional to 612,360 and 919,188 is: 1,379,754.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,360 : 919,188 = 919,188 : x
  2. Step 2: Convert to fraction form
    612,360/919,188 = 919,188/x
  3. Step 3: Cross multiply
    612,360x = 919,188 × 919,188
  4. Step 4: Simplify right side
    612,360x = 844,906,579,344
  5. Step 5: Solve for x
    x = 844,906,579,344/612,360
  6. Step 6: Final answer
    x = 1,379,754.69

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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.