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Finding the Fourth Proportional to 2,979,647.07, 4,469,511.61 and 849,731.41

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Solution

The fourth proportional to 2,979,647.07, 4,469,511.61 and 849,731.41 is: 1,274,608.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979,647.07 : 4,469,511.61 = 849,731.41 : x
  2. Step 2: Convert to fraction form
    2,979,647.07/4,469,511.61 = 849,731.41/x
  3. Step 3: Cross multiply
    2,979,647.07x = 4,469,511.61 × 849,731.41
  4. Step 4: Simplify right side
    2,979,647.07x = 3,797,884,398,128.01
  5. Step 5: Solve for x
    x = 3,797,884,398,128.01/2,979,647.07
  6. Step 6: Final answer
    x = 1,274,608.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.