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Finding the Fourth Proportional to 2,979,647.32, 4,469,511.98 and 849,731.66

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Solution

The fourth proportional to 2,979,647.32, 4,469,511.98 and 849,731.66 is: 1,274,609.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979,647.32 : 4,469,511.98 = 849,731.66 : x
  2. Step 2: Convert to fraction form
    2,979,647.32/4,469,511.98 = 849,731.66/x
  3. Step 3: Cross multiply
    2,979,647.32x = 4,469,511.98 × 849,731.66
  4. Step 4: Simplify right side
    2,979,647.32x = 3,797,885,847,453.40
  5. Step 5: Solve for x
    x = 3,797,885,847,453.40/2,979,647.32
  6. Step 6: Final answer
    x = 1,274,609.19

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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.