Home / 681,617.70-1,022,426.55-208,299.06

Finding the Fourth Proportional to 681,617.70, 1,022,426.55 and 208,299.06

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Solution

The fourth proportional to 681,617.70, 1,022,426.55 and 208,299.06 is: 312,448.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,617.70 : 1,022,426.55 = 208,299.06 : x
  2. Step 2: Convert to fraction form
    681,617.70/1,022,426.55 = 208,299.06/x
  3. Step 3: Cross multiply
    681,617.70x = 1,022,426.55 × 208,299.06
  4. Step 4: Simplify right side
    681,617.70x = 212,970,489,284.04
  5. Step 5: Solve for x
    x = 212,970,489,284.04/681,617.70
  6. Step 6: Final answer
    x = 312,448.59

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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.