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Finding the Third Proportional to 293,248 and 638,984

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Solution

The third proportional to 293,248 and 638,984 is: 1,392,338.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,248 : 638,984 = 638,984 : x
  2. Step 2: Convert to fraction form
    293,248/638,984 = 638,984/x
  3. Step 3: Cross multiply
    293,248x = 638,984 × 638,984
  4. Step 4: Simplify right side
    293,248x = 408,300,552,256
  5. Step 5: Solve for x
    x = 408,300,552,256/293,248
  6. Step 6: Final answer
    x = 1,392,338.74

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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.