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Finding the Third Proportional to 419,533 and 629,292.50

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Solution

The third proportional to 419,533 and 629,292.50 is: 943,928.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,533 : 629,292.50 = 629,292.50 : x
  2. Step 2: Convert to fraction form
    419,533/629,292.50 = 629,292.50/x
  3. Step 3: Cross multiply
    419,533x = 629,292.50 × 629,292.50
  4. Step 4: Simplify right side
    419,533x = 396,009,050,556.25
  5. Step 5: Solve for x
    x = 396,009,050,556.25/419,533
  6. Step 6: Final answer
    x = 943,928.25

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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.