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Finding the Third Proportional to 499,855 and 774,203

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Solution

The third proportional to 499,855 and 774,203 is: 1,199,128.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,855 : 774,203 = 774,203 : x
  2. Step 2: Convert to fraction form
    499,855/774,203 = 774,203/x
  3. Step 3: Cross multiply
    499,855x = 774,203 × 774,203
  4. Step 4: Simplify right side
    499,855x = 599,390,285,209
  5. Step 5: Solve for x
    x = 599,390,285,209/499,855
  6. Step 6: Final answer
    x = 1,199,128.32

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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.