Home / 1,221,227.91-1,685,496.33-677,538.86

Finding the Fourth Proportional to 1,221,227.91, 1,685,496.33 and 677,538.86

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Solution

The fourth proportional to 1,221,227.91, 1,685,496.33 and 677,538.86 is: 935,115.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,227.91 : 1,685,496.33 = 677,538.86 : x
  2. Step 2: Convert to fraction form
    1,221,227.91/1,685,496.33 = 677,538.86/x
  3. Step 3: Cross multiply
    1,221,227.91x = 1,685,496.33 × 677,538.86
  4. Step 4: Simplify right side
    1,221,227.91x = 1,141,989,253,534.90
  5. Step 5: Solve for x
    x = 1,141,989,253,534.90/1,221,227.91
  6. Step 6: Final answer
    x = 935,115.59

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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.