Home / 821,635.20-1,232,452.80-505,065.60

Finding the Fourth Proportional to 821,635.20, 1,232,452.80 and 505,065.60

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Solution

The fourth proportional to 821,635.20, 1,232,452.80 and 505,065.60 is: 757,598.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,635.20 : 1,232,452.80 = 505,065.60 : x
  2. Step 2: Convert to fraction form
    821,635.20/1,232,452.80 = 505,065.60/x
  3. Step 3: Cross multiply
    821,635.20x = 1,232,452.80 × 505,065.60
  4. Step 4: Simplify right side
    821,635.20x = 622,469,512,903.68
  5. Step 5: Solve for x
    x = 622,469,512,903.68/821,635.20
  6. Step 6: Final answer
    x = 757,598.40

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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.