Home / 809,086.40-1,214,407.20-410,177.60

Finding the Fourth Proportional to 809,086.40, 1,214,407.20 and 410,177.60

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Solution

The fourth proportional to 809,086.40, 1,214,407.20 and 410,177.60 is: 615,660.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,086.40 : 1,214,407.20 = 410,177.60 : x
  2. Step 2: Convert to fraction form
    809,086.40/1,214,407.20 = 410,177.60/x
  3. Step 3: Cross multiply
    809,086.40x = 1,214,407.20 × 410,177.60
  4. Step 4: Simplify right side
    809,086.40x = 498,122,630,718.72
  5. Step 5: Solve for x
    x = 498,122,630,718.72/809,086.40
  6. Step 6: Final answer
    x = 615,660.62

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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.