Home / 681,756.51-1,022,634.78-208,441.86

Finding the Fourth Proportional to 681,756.51, 1,022,634.78 and 208,441.86

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Solution

The fourth proportional to 681,756.51, 1,022,634.78 and 208,441.86 is: 312,662.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,756.51 : 1,022,634.78 = 208,441.86 : x
  2. Step 2: Convert to fraction form
    681,756.51/1,022,634.78 = 208,441.86/x
  3. Step 3: Cross multiply
    681,756.51x = 1,022,634.78 × 208,441.86
  4. Step 4: Simplify right side
    681,756.51x = 213,159,895,643.89
  5. Step 5: Solve for x
    x = 213,159,895,643.89/681,756.51
  6. Step 6: Final answer
    x = 312,662.79

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Similar ratio
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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.