Home / 856,979.56-1,179,939.39-727,648.48

Finding the Fourth Proportional to 856,979.56, 1,179,939.39 and 727,648.48

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Solution

The fourth proportional to 856,979.56, 1,179,939.39 and 727,648.48 is: 1,001,868.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,979.56 : 1,179,939.39 = 727,648.48 : x
  2. Step 2: Convert to fraction form
    856,979.56/1,179,939.39 = 727,648.48/x
  3. Step 3: Cross multiply
    856,979.56x = 1,179,939.39 × 727,648.48
  4. Step 4: Simplify right side
    856,979.56x = 858,581,103,625.63
  5. Step 5: Solve for x
    x = 858,581,103,625.63/856,979.56
  6. Step 6: Final answer
    x = 1,001,868.82

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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.