Home / 681,605.40-1,022,213.70-208,176.60

Finding the Fourth Proportional to 681,605.40, 1,022,213.70 and 208,176.60

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Solution

The fourth proportional to 681,605.40, 1,022,213.70 and 208,176.60 is: 312,205.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,605.40 : 1,022,213.70 = 208,176.60 : x
  2. Step 2: Convert to fraction form
    681,605.40/1,022,213.70 = 208,176.60/x
  3. Step 3: Cross multiply
    681,605.40x = 1,022,213.70 × 208,176.60
  4. Step 4: Simplify right side
    681,605.40x = 212,800,972,539.42
  5. Step 5: Solve for x
    x = 212,800,972,539.42/681,605.40
  6. Step 6: Final answer
    x = 312,205.53

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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.