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Finding the Third Proportional to 388,613.63 and 836,276.63

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Solution

The third proportional to 388,613.63 and 836,276.63 is: 1,799,624.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,613.63 : 836,276.63 = 836,276.63 : x
  2. Step 2: Convert to fraction form
    388,613.63/836,276.63 = 836,276.63/x
  3. Step 3: Cross multiply
    388,613.63x = 836,276.63 × 836,276.63
  4. Step 4: Simplify right side
    388,613.63x = 699,358,593,521.39
  5. Step 5: Solve for x
    x = 699,358,593,521.39/388,613.63
  6. Step 6: Final answer
    x = 1,799,624.48

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.