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Finding the Third Proportional to 389,279.25 and 836,750.25

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Solution

The third proportional to 389,279.25 and 836,750.25 is: 1,798,582.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,279.25 : 836,750.25 = 836,750.25 : x
  2. Step 2: Convert to fraction form
    389,279.25/836,750.25 = 836,750.25/x
  3. Step 3: Cross multiply
    389,279.25x = 836,750.25 × 836,750.25
  4. Step 4: Simplify right side
    389,279.25x = 700,150,980,875.06
  5. Step 5: Solve for x
    x = 700,150,980,875.06/389,279.25
  6. Step 6: Final answer
    x = 1,798,582.84

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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.