Home / 711,942.76-1,067,880.54-206,488.36

Finding the Fourth Proportional to 711,942.76, 1,067,880.54 and 206,488.36

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Solution

The fourth proportional to 711,942.76, 1,067,880.54 and 206,488.36 is: 309,722.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,942.76 : 1,067,880.54 = 206,488.36 : x
  2. Step 2: Convert to fraction form
    711,942.76/1,067,880.54 = 206,488.36/x
  3. Step 3: Cross multiply
    711,942.76x = 1,067,880.54 × 206,488.36
  4. Step 4: Simplify right side
    711,942.76x = 220,504,901,380.51
  5. Step 5: Solve for x
    x = 220,504,901,380.51/711,942.76
  6. Step 6: Final answer
    x = 309,722.79

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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.