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Finding the Third Proportional to 814,120 and 1,245,356

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Solution

The third proportional to 814,120 and 1,245,356 is: 1,905,015.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,120 : 1,245,356 = 1,245,356 : x
  2. Step 2: Convert to fraction form
    814,120/1,245,356 = 1,245,356/x
  3. Step 3: Cross multiply
    814,120x = 1,245,356 × 1,245,356
  4. Step 4: Simplify right side
    814,120x = 1,550,911,566,736
  5. Step 5: Solve for x
    x = 1,550,911,566,736/814,120
  6. Step 6: Final answer
    x = 1,905,015.93

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.