Home / 681,780.51-1,022,670.90-208,465.92

Finding the Fourth Proportional to 681,780.51, 1,022,670.90 and 208,465.92

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Solution

The fourth proportional to 681,780.51, 1,022,670.90 and 208,465.92 is: 312,698.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,780.51 : 1,022,670.90 = 208,465.92 : x
  2. Step 2: Convert to fraction form
    681,780.51/1,022,670.90 = 208,465.92/x
  3. Step 3: Cross multiply
    681,780.51x = 1,022,670.90 × 208,465.92
  4. Step 4: Simplify right side
    681,780.51x = 213,192,030,025.73
  5. Step 5: Solve for x
    x = 213,192,030,025.73/681,780.51
  6. Step 6: Final answer
    x = 312,698.92

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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.