Home / 654,380.35-981,582.82-205,091.28

Finding the Fourth Proportional to 654,380.35, 981,582.82 and 205,091.28

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Solution

The fourth proportional to 654,380.35, 981,582.82 and 205,091.28 is: 307,640.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,380.35 : 981,582.82 = 205,091.28 : x
  2. Step 2: Convert to fraction form
    654,380.35/981,582.82 = 205,091.28/x
  3. Step 3: Cross multiply
    654,380.35x = 981,582.82 × 205,091.28
  4. Step 4: Simplify right side
    654,380.35x = 201,314,076,467.08
  5. Step 5: Solve for x
    x = 201,314,076,467.08/654,380.35
  6. Step 6: Final answer
    x = 307,640.77

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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.