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Finding the Third Proportional to 223,420 and 478,822

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Solution

The third proportional to 223,420 and 478,822 is: 1,026,186.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,420 : 478,822 = 478,822 : x
  2. Step 2: Convert to fraction form
    223,420/478,822 = 478,822/x
  3. Step 3: Cross multiply
    223,420x = 478,822 × 478,822
  4. Step 4: Simplify right side
    223,420x = 229,270,507,684
  5. Step 5: Solve for x
    x = 229,270,507,684/223,420
  6. Step 6: Final answer
    x = 1,026,186.14

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.