Home / 809,744.20-1,215,350.70-410,662.60

Finding the Fourth Proportional to 809,744.20, 1,215,350.70 and 410,662.60

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Solution

The fourth proportional to 809,744.20, 1,215,350.70 and 410,662.60 is: 616,366.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,744.20 : 1,215,350.70 = 410,662.60 : x
  2. Step 2: Convert to fraction form
    809,744.20/1,215,350.70 = 410,662.60/x
  3. Step 3: Cross multiply
    809,744.20x = 1,215,350.70 × 410,662.60
  4. Step 4: Simplify right side
    809,744.20x = 499,099,078,373.82
  5. Step 5: Solve for x
    x = 499,099,078,373.82/809,744.20
  6. Step 6: Final answer
    x = 616,366.35

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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.