Home / 3,086,124.80-4,629,187.20-842,489.60

Finding the Fourth Proportional to 3,086,124.80, 4,629,187.20 and 842,489.60

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Solution

The fourth proportional to 3,086,124.80, 4,629,187.20 and 842,489.60 is: 1,263,734.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086,124.80 : 4,629,187.20 = 842,489.60 : x
  2. Step 2: Convert to fraction form
    3,086,124.80/4,629,187.20 = 842,489.60/x
  3. Step 3: Cross multiply
    3,086,124.80x = 4,629,187.20 × 842,489.60
  4. Step 4: Simplify right side
    3,086,124.80x = 3,900,042,072,453.12
  5. Step 5: Solve for x
    x = 3,900,042,072,453.12/3,086,124.80
  6. Step 6: Final answer
    x = 1,263,734.40

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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.