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Finding the Third Proportional to 373,986 and 816,516

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Solution

The third proportional to 373,986 and 816,516 is: 1,782,682.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,986 : 816,516 = 816,516 : x
  2. Step 2: Convert to fraction form
    373,986/816,516 = 816,516/x
  3. Step 3: Cross multiply
    373,986x = 816,516 × 816,516
  4. Step 4: Simplify right side
    373,986x = 666,698,378,256
  5. Step 5: Solve for x
    x = 666,698,378,256/373,986
  6. Step 6: Final answer
    x = 1,782,682.72

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.