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Finding the Fourth Proportional to 394,797.94, 544,822.80 and 213,509.87

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Solution

The fourth proportional to 394,797.94, 544,822.80 and 213,509.87 is: 294,644.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,797.94 : 544,822.80 = 213,509.87 : x
  2. Step 2: Convert to fraction form
    394,797.94/544,822.80 = 213,509.87/x
  3. Step 3: Cross multiply
    394,797.94x = 544,822.80 × 213,509.87
  4. Step 4: Simplify right side
    394,797.94x = 116,325,045,201.04
  5. Step 5: Solve for x
    x = 116,325,045,201.04/394,797.94
  6. Step 6: Final answer
    x = 294,644.51

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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.