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Finding the Fourth Proportional to 5,279,285.83, 7,285,414.44 and 2,864,837.83

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Solution

The fourth proportional to 5,279,285.83, 7,285,414.44 and 2,864,837.83 is: 3,953,476.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279,285.83 : 7,285,414.44 = 2,864,837.83 : x
  2. Step 2: Convert to fraction form
    5,279,285.83/7,285,414.44 = 2,864,837.83/x
  3. Step 3: Cross multiply
    5,279,285.83x = 7,285,414.44 × 2,864,837.83
  4. Step 4: Simplify right side
    5,279,285.83x = 20,871,530,894,940.27
  5. Step 5: Solve for x
    x = 20,871,530,894,940.27/5,279,285.83
  6. Step 6: Final answer
    x = 3,953,476.20

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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.