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Finding the Fourth Proportional to 394,888.62, 544,946.40 and 213,600.48

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Solution

The fourth proportional to 394,888.62, 544,946.40 and 213,600.48 is: 294,768.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,888.62 : 544,946.40 = 213,600.48 : x
  2. Step 2: Convert to fraction form
    394,888.62/544,946.40 = 213,600.48/x
  3. Step 3: Cross multiply
    394,888.62x = 544,946.40 × 213,600.48
  4. Step 4: Simplify right side
    394,888.62x = 116,400,812,614.27
  5. Step 5: Solve for x
    x = 116,400,812,614.27/394,888.62
  6. Step 6: Final answer
    x = 294,768.72

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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.