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Finding the Third Proportional to 259,620 and 558,018

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Solution

The third proportional to 259,620 and 558,018 is: 1,199,384.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,620 : 558,018 = 558,018 : x
  2. Step 2: Convert to fraction form
    259,620/558,018 = 558,018/x
  3. Step 3: Cross multiply
    259,620x = 558,018 × 558,018
  4. Step 4: Simplify right side
    259,620x = 311,384,088,324
  5. Step 5: Solve for x
    x = 311,384,088,324/259,620
  6. Step 6: Final answer
    x = 1,199,384.05

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.