Home / 809,601.40-1,215,179.70-410,692.60

Finding the Fourth Proportional to 809,601.40, 1,215,179.70 and 410,692.60

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Solution

The fourth proportional to 809,601.40, 1,215,179.70 and 410,692.60 is: 616,433.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,601.40 : 1,215,179.70 = 410,692.60 : x
  2. Step 2: Convert to fraction form
    809,601.40/1,215,179.70 = 410,692.60/x
  3. Step 3: Cross multiply
    809,601.40x = 1,215,179.70 × 410,692.60
  4. Step 4: Simplify right side
    809,601.40x = 499,065,310,460.22
  5. Step 5: Solve for x
    x = 499,065,310,460.22/809,601.40
  6. Step 6: Final answer
    x = 616,433.36

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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.