Home / 762,481.60-1,143,722.40-419,997.40

Finding the Fourth Proportional to 762,481.60, 1,143,722.40 and 419,997.40

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Solution

The fourth proportional to 762,481.60, 1,143,722.40 and 419,997.40 is: 629,996.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,481.60 : 1,143,722.40 = 419,997.40 : x
  2. Step 2: Convert to fraction form
    762,481.60/1,143,722.40 = 419,997.40/x
  3. Step 3: Cross multiply
    762,481.60x = 1,143,722.40 × 419,997.40
  4. Step 4: Simplify right side
    762,481.60x = 480,360,434,321.76
  5. Step 5: Solve for x
    x = 480,360,434,321.76/762,481.60
  6. Step 6: Final answer
    x = 629,996.10

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1.5x scale

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.