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Finding the Third Proportional to 355,340 and 777,110

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Solution

The third proportional to 355,340 and 777,110 is: 1,699,498.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,340 : 777,110 = 777,110 : x
  2. Step 2: Convert to fraction form
    355,340/777,110 = 777,110/x
  3. Step 3: Cross multiply
    355,340x = 777,110 × 777,110
  4. Step 4: Simplify right side
    355,340x = 603,899,952,100
  5. Step 5: Solve for x
    x = 603,899,952,100/355,340
  6. Step 6: Final answer
    x = 1,699,498.94

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.