Home / 1,191,042.92-1,643,610.35-667,718.86

Finding the Fourth Proportional to 1,191,042.92, 1,643,610.35 and 667,718.86

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Solution

The fourth proportional to 1,191,042.92, 1,643,610.35 and 667,718.86 is: 921,435.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,042.92 : 1,643,610.35 = 667,718.86 : x
  2. Step 2: Convert to fraction form
    1,191,042.92/1,643,610.35 = 667,718.86/x
  3. Step 3: Cross multiply
    1,191,042.92x = 1,643,610.35 × 667,718.86
  4. Step 4: Simplify right side
    1,191,042.92x = 1,097,469,629,828.24
  5. Step 5: Solve for x
    x = 1,097,469,629,828.24/1,191,042.92
  6. Step 6: Final answer
    x = 921,435.84

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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.