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Finding the Third Proportional to 420,402 and 922,563

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Solution

The third proportional to 420,402 and 922,563 is: 2,024,544.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,402 : 922,563 = 922,563 : x
  2. Step 2: Convert to fraction form
    420,402/922,563 = 922,563/x
  3. Step 3: Cross multiply
    420,402x = 922,563 × 922,563
  4. Step 4: Simplify right side
    420,402x = 851,122,488,969
  5. Step 5: Solve for x
    x = 851,122,488,969/420,402
  6. Step 6: Final answer
    x = 2,024,544.34

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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.