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Finding the Third Proportional to 424,136 and 922,905

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Solution

The third proportional to 424,136 and 922,905 is: 2,008,208.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,136 : 922,905 = 922,905 : x
  2. Step 2: Convert to fraction form
    424,136/922,905 = 922,905/x
  3. Step 3: Cross multiply
    424,136x = 922,905 × 922,905
  4. Step 4: Simplify right side
    424,136x = 851,753,639,025
  5. Step 5: Solve for x
    x = 851,753,639,025/424,136
  6. Step 6: Final answer
    x = 2,008,208.78

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.