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Finding the Third Proportional to 284,938 and 442,948

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Solution

The third proportional to 284,938 and 442,948 is: 688,581.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,938 : 442,948 = 442,948 : x
  2. Step 2: Convert to fraction form
    284,938/442,948 = 442,948/x
  3. Step 3: Cross multiply
    284,938x = 442,948 × 442,948
  4. Step 4: Simplify right side
    284,938x = 196,202,930,704
  5. Step 5: Solve for x
    x = 196,202,930,704/284,938
  6. Step 6: Final answer
    x = 688,581.13

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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.