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Finding the Third Proportional to 556,003.69 and 1,213,960.21

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Solution

The third proportional to 556,003.69 and 1,213,960.21 is: 2,650,520.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,003.69 : 1,213,960.21 = 1,213,960.21 : x
  2. Step 2: Convert to fraction form
    556,003.69/1,213,960.21 = 1,213,960.21/x
  3. Step 3: Cross multiply
    556,003.69x = 1,213,960.21 × 1,213,960.21
  4. Step 4: Simplify right side
    556,003.69x = 1,473,699,393,739.42
  5. Step 5: Solve for x
    x = 1,473,699,393,739.42/556,003.69
  6. Step 6: Final answer
    x = 2,650,520.90

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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.