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Finding the Third Proportional to 519,780.75 and 777,555.56

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Solution

The third proportional to 519,780.75 and 777,555.56 is: 1,163,168.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,780.75 : 777,555.56 = 777,555.56 : x
  2. Step 2: Convert to fraction form
    519,780.75/777,555.56 = 777,555.56/x
  3. Step 3: Cross multiply
    519,780.75x = 777,555.56 × 777,555.56
  4. Step 4: Simplify right side
    519,780.75x = 604,592,652,774.69
  5. Step 5: Solve for x
    x = 604,592,652,774.69/519,780.75
  6. Step 6: Final answer
    x = 1,163,168.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.