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Finding the Fourth Proportional to 2,809,789.92, 3,877,495.92 and 1,520,630.64

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Solution

The fourth proportional to 2,809,789.92, 3,877,495.92 and 1,520,630.64 is: 2,098,462.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809,789.92 : 3,877,495.92 = 1,520,630.64 : x
  2. Step 2: Convert to fraction form
    2,809,789.92/3,877,495.92 = 1,520,630.64/x
  3. Step 3: Cross multiply
    2,809,789.92x = 3,877,495.92 × 1,520,630.64
  4. Step 4: Simplify right side
    2,809,789.92x = 5,896,239,102,426.99
  5. Step 5: Solve for x
    x = 5,896,239,102,426.99/2,809,789.92
  6. Step 6: Final answer
    x = 2,098,462.61

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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.