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Finding the Third Proportional to 484,345 and 664,876

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Solution

The third proportional to 484,345 and 664,876 is: 912,696.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,345 : 664,876 = 664,876 : x
  2. Step 2: Convert to fraction form
    484,345/664,876 = 664,876/x
  3. Step 3: Cross multiply
    484,345x = 664,876 × 664,876
  4. Step 4: Simplify right side
    484,345x = 442,060,095,376
  5. Step 5: Solve for x
    x = 442,060,095,376/484,345
  6. Step 6: Final answer
    x = 912,696.73

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.