Home / 821,661.20-1,233,528.60-442,883.60

Finding the Fourth Proportional to 821,661.20, 1,233,528.60 and 442,883.60

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Solution

The fourth proportional to 821,661.20, 1,233,528.60 and 442,883.60 is: 664,884.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,661.20 : 1,233,528.60 = 442,883.60 : x
  2. Step 2: Convert to fraction form
    821,661.20/1,233,528.60 = 442,883.60/x
  3. Step 3: Cross multiply
    821,661.20x = 1,233,528.60 × 442,883.60
  4. Step 4: Simplify right side
    821,661.20x = 546,309,587,070.96
  5. Step 5: Solve for x
    x = 546,309,587,070.96/821,661.20
  6. Step 6: Final answer
    x = 664,884.25

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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.