Home / 810,012.80-1,214,241.60-629,998.40

Finding the Fourth Proportional to 810,012.80, 1,214,241.60 and 629,998.40

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Solution

The fourth proportional to 810,012.80, 1,214,241.60 and 629,998.40 is: 944,392.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,012.80 : 1,214,241.60 = 629,998.40 : x
  2. Step 2: Convert to fraction form
    810,012.80/1,214,241.60 = 629,998.40/x
  3. Step 3: Cross multiply
    810,012.80x = 1,214,241.60 × 629,998.40
  4. Step 4: Simplify right side
    810,012.80x = 764,970,265,213.44
  5. Step 5: Solve for x
    x = 764,970,265,213.44/810,012.80
  6. Step 6: Final answer
    x = 944,392.81

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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.