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Finding the Third Proportional to 620,902 and 949,399

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Solution

The third proportional to 620,902 and 949,399 is: 1,451,691.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,902 : 949,399 = 949,399 : x
  2. Step 2: Convert to fraction form
    620,902/949,399 = 949,399/x
  3. Step 3: Cross multiply
    620,902x = 949,399 × 949,399
  4. Step 4: Simplify right side
    620,902x = 901,358,461,201
  5. Step 5: Solve for x
    x = 901,358,461,201/620,902
  6. Step 6: Final answer
    x = 1,451,691.99

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.