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Finding the Third Proportional to 553,274 and 878,295

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Solution

The third proportional to 553,274 and 878,295 is: 1,394,249.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,274 : 878,295 = 878,295 : x
  2. Step 2: Convert to fraction form
    553,274/878,295 = 878,295/x
  3. Step 3: Cross multiply
    553,274x = 878,295 × 878,295
  4. Step 4: Simplify right side
    553,274x = 771,402,107,025
  5. Step 5: Solve for x
    x = 771,402,107,025/553,274
  6. Step 6: Final answer
    x = 1,394,249.70

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.