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Finding the Fourth Proportional to 858,035, 1,179,889.26 and 744,660.92

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Solution

The fourth proportional to 858,035, 1,179,889.26 and 744,660.92 is: 1,023,987.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,035 : 1,179,889.26 = 744,660.92 : x
  2. Step 2: Convert to fraction form
    858,035/1,179,889.26 = 744,660.92/x
  3. Step 3: Cross multiply
    858,035x = 1,179,889.26 × 744,660.92
  4. Step 4: Simplify right side
    858,035x = 878,617,421,849.72
  5. Step 5: Solve for x
    x = 878,617,421,849.72/858,035
  6. Step 6: Final answer
    x = 1,023,987.86

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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.