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Finding the Third Proportional to 555,425 and 840,927

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Solution

The third proportional to 555,425 and 840,927 is: 1,273,183.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,425 : 840,927 = 840,927 : x
  2. Step 2: Convert to fraction form
    555,425/840,927 = 840,927/x
  3. Step 3: Cross multiply
    555,425x = 840,927 × 840,927
  4. Step 4: Simplify right side
    555,425x = 707,158,219,329
  5. Step 5: Solve for x
    x = 707,158,219,329/555,425
  6. Step 6: Final answer
    x = 1,273,183.99

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.