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Finding the Third Proportional to 496,612 and 768,808

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Solution

The third proportional to 496,612 and 768,808 is: 1,190,196.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,612 : 768,808 = 768,808 : x
  2. Step 2: Convert to fraction form
    496,612/768,808 = 768,808/x
  3. Step 3: Cross multiply
    496,612x = 768,808 × 768,808
  4. Step 4: Simplify right side
    496,612x = 591,065,740,864
  5. Step 5: Solve for x
    x = 591,065,740,864/496,612
  6. Step 6: Final answer
    x = 1,190,196.25

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.