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Finding the Fourth Proportional to 394,711.68, 544,702.50 and 213,423.56

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Solution

The fourth proportional to 394,711.68, 544,702.50 and 213,423.56 is: 294,524.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,711.68 : 544,702.50 = 213,423.56 : x
  2. Step 2: Convert to fraction form
    394,711.68/544,702.50 = 213,423.56/x
  3. Step 3: Cross multiply
    394,711.68x = 544,702.50 × 213,423.56
  4. Step 4: Simplify right side
    394,711.68x = 116,252,342,900.27
  5. Step 5: Solve for x
    x = 116,252,342,900.27/394,711.68
  6. Step 6: Final answer
    x = 294,524.71

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1.5x scale

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.