Home / 825,434-1,139,098.92-486,110.96

Finding the Fourth Proportional to 825,434, 1,139,098.92 and 486,110.96

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Solution

The fourth proportional to 825,434, 1,139,098.92 and 486,110.96 is: 670,833.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,434 : 1,139,098.92 = 486,110.96 : x
  2. Step 2: Convert to fraction form
    825,434/1,139,098.92 = 486,110.96/x
  3. Step 3: Cross multiply
    825,434x = 1,139,098.92 × 486,110.96
  4. Step 4: Simplify right side
    825,434x = 553,728,469,536.16
  5. Step 5: Solve for x
    x = 553,728,469,536.16/825,434
  6. Step 6: Final answer
    x = 670,833.12

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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.