Home / 654,394.50-981,604.08-205,105.50

Finding the Fourth Proportional to 654,394.50, 981,604.08 and 205,105.50

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Solution

The fourth proportional to 654,394.50, 981,604.08 and 205,105.50 is: 307,662.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,394.50 : 981,604.08 = 205,105.50 : x
  2. Step 2: Convert to fraction form
    654,394.50/981,604.08 = 205,105.50/x
  3. Step 3: Cross multiply
    654,394.50x = 981,604.08 × 205,105.50
  4. Step 4: Simplify right side
    654,394.50x = 201,332,395,630.44
  5. Step 5: Solve for x
    x = 201,332,395,630.44/654,394.50
  6. Step 6: Final answer
    x = 307,662.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.