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Finding the Third Proportional to 383,619 and 580,759.50

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Solution

The third proportional to 383,619 and 580,759.50 is: 879,209.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,619 : 580,759.50 = 580,759.50 : x
  2. Step 2: Convert to fraction form
    383,619/580,759.50 = 580,759.50/x
  3. Step 3: Cross multiply
    383,619x = 580,759.50 × 580,759.50
  4. Step 4: Simplify right side
    383,619x = 337,281,596,840.25
  5. Step 5: Solve for x
    x = 337,281,596,840.25/383,619
  6. Step 6: Final answer
    x = 879,209.83

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.