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Finding the Third Proportional to 380,570 and 836,472

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Solution

The third proportional to 380,570 and 836,472 is: 1,838,519.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,570 : 836,472 = 836,472 : x
  2. Step 2: Convert to fraction form
    380,570/836,472 = 836,472/x
  3. Step 3: Cross multiply
    380,570x = 836,472 × 836,472
  4. Step 4: Simplify right side
    380,570x = 699,685,406,784
  5. Step 5: Solve for x
    x = 699,685,406,784/380,570
  6. Step 6: Final answer
    x = 1,838,519.61

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.