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Finding the Third Proportional to 399,025 and 875,586

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Solution

The third proportional to 399,025 and 875,586 is: 1,921,310.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,025 : 875,586 = 875,586 : x
  2. Step 2: Convert to fraction form
    399,025/875,586 = 875,586/x
  3. Step 3: Cross multiply
    399,025x = 875,586 × 875,586
  4. Step 4: Simplify right side
    399,025x = 766,650,843,396
  5. Step 5: Solve for x
    x = 766,650,843,396/399,025
  6. Step 6: Final answer
    x = 1,921,310.30

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.