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Finding the Fourth Proportional to 394,700.46, 544,685.49 and 213,411.12

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Solution

The fourth proportional to 394,700.46, 544,685.49 and 213,411.12 is: 294,506.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,700.46 : 544,685.49 = 213,411.12 : x
  2. Step 2: Convert to fraction form
    394,700.46/544,685.49 = 213,411.12/x
  3. Step 3: Cross multiply
    394,700.46x = 544,685.49 × 213,411.12
  4. Step 4: Simplify right side
    394,700.46x = 116,241,940,468.65
  5. Step 5: Solve for x
    x = 116,241,940,468.65/394,700.46
  6. Step 6: Final answer
    x = 294,506.73

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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.