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Finding the Third Proportional to 616,903 and 920,214

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Solution

The third proportional to 616,903 and 920,214 is: 1,372,653.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,903 : 920,214 = 920,214 : x
  2. Step 2: Convert to fraction form
    616,903/920,214 = 920,214/x
  3. Step 3: Cross multiply
    616,903x = 920,214 × 920,214
  4. Step 4: Simplify right side
    616,903x = 846,793,805,796
  5. Step 5: Solve for x
    x = 846,793,805,796/616,903
  6. Step 6: Final answer
    x = 1,372,653.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.