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Finding the Third Proportional to 228,855 and 478,623

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Solution

The third proportional to 228,855 and 478,623 is: 1,000,983.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,855 : 478,623 = 478,623 : x
  2. Step 2: Convert to fraction form
    228,855/478,623 = 478,623/x
  3. Step 3: Cross multiply
    228,855x = 478,623 × 478,623
  4. Step 4: Simplify right side
    228,855x = 229,079,976,129
  5. Step 5: Solve for x
    x = 229,079,976,129/228,855
  6. Step 6: Final answer
    x = 1,000,983.05

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.