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Finding the Fourth Proportional to 681,574.52, 1,022,545.82 and 208,247

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Solution

The fourth proportional to 681,574.52, 1,022,545.82 and 208,247 is: 312,426.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,574.52 : 1,022,545.82 = 208,247 : x
  2. Step 2: Convert to fraction form
    681,574.52/1,022,545.82 = 208,247/x
  3. Step 3: Cross multiply
    681,574.52x = 1,022,545.82 × 208,247
  4. Step 4: Simplify right side
    681,574.52x = 212,942,099,377.54
  5. Step 5: Solve for x
    x = 212,942,099,377.54/681,574.52
  6. Step 6: Final answer
    x = 312,426.73

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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.