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Finding the Third Proportional to 284,942 and 442,956

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Solution

The third proportional to 284,942 and 442,956 is: 688,596.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,942 : 442,956 = 442,956 : x
  2. Step 2: Convert to fraction form
    284,942/442,956 = 442,956/x
  3. Step 3: Cross multiply
    284,942x = 442,956 × 442,956
  4. Step 4: Simplify right side
    284,942x = 196,210,017,936
  5. Step 5: Solve for x
    x = 196,210,017,936/284,942
  6. Step 6: Final answer
    x = 688,596.34

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.