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Finding the Third Proportional to 621,218 and 1,330,972

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Solution

The third proportional to 621,218 and 1,330,972 is: 2,851,634.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,218 : 1,330,972 = 1,330,972 : x
  2. Step 2: Convert to fraction form
    621,218/1,330,972 = 1,330,972/x
  3. Step 3: Cross multiply
    621,218x = 1,330,972 × 1,330,972
  4. Step 4: Simplify right side
    621,218x = 1,771,486,464,784
  5. Step 5: Solve for x
    x = 1,771,486,464,784/621,218
  6. Step 6: Final answer
    x = 2,851,634.15

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.