Home / 681,958.24-1,022,900.40-208,643.52

Finding the Fourth Proportional to 681,958.24, 1,022,900.40 and 208,643.52

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Solution

The fourth proportional to 681,958.24, 1,022,900.40 and 208,643.52 is: 312,953.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,958.24 : 1,022,900.40 = 208,643.52 : x
  2. Step 2: Convert to fraction form
    681,958.24/1,022,900.40 = 208,643.52/x
  3. Step 3: Cross multiply
    681,958.24x = 1,022,900.40 × 208,643.52
  4. Step 4: Simplify right side
    681,958.24x = 213,421,540,065.41
  5. Step 5: Solve for x
    x = 213,421,540,065.41/681,958.24
  6. Step 6: Final answer
    x = 312,953.97

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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.