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Finding the Fourth Proportional to 394,843.68, 544,884.24 and 213,555.60

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Solution

The fourth proportional to 394,843.68, 544,884.24 and 213,555.60 is: 294,706.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,843.68 : 544,884.24 = 213,555.60 : x
  2. Step 2: Convert to fraction form
    394,843.68/544,884.24 = 213,555.60/x
  3. Step 3: Cross multiply
    394,843.68x = 544,884.24 × 213,555.60
  4. Step 4: Simplify right side
    394,843.68x = 116,363,080,803.74
  5. Step 5: Solve for x
    x = 116,363,080,803.74/394,843.68
  6. Step 6: Final answer
    x = 294,706.71

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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.