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Finding the Third Proportional to 402,844 and 564,676

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Solution

The third proportional to 402,844 and 564,676 is: 791,519.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,844 : 564,676 = 564,676 : x
  2. Step 2: Convert to fraction form
    402,844/564,676 = 564,676/x
  3. Step 3: Cross multiply
    402,844x = 564,676 × 564,676
  4. Step 4: Simplify right side
    402,844x = 318,858,984,976
  5. Step 5: Solve for x
    x = 318,858,984,976/402,844
  6. Step 6: Final answer
    x = 791,519.76

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.