Home / 493,516.70-681,057.82-289,571.12

Finding the Fourth Proportional to 493,516.70, 681,057.82 and 289,571.12

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Solution

The fourth proportional to 493,516.70, 681,057.82 and 289,571.12 is: 399,610.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,516.70 : 681,057.82 = 289,571.12 : x
  2. Step 2: Convert to fraction form
    493,516.70/681,057.82 = 289,571.12/x
  3. Step 3: Cross multiply
    493,516.70x = 681,057.82 × 289,571.12
  4. Step 4: Simplify right side
    493,516.70x = 197,214,675,722.16
  5. Step 5: Solve for x
    x = 197,214,675,722.16/493,516.70
  6. Step 6: Final answer
    x = 399,610.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.