Home / 654,410.14-981,586.65-205,120.77

Finding the Fourth Proportional to 654,410.14, 981,586.65 and 205,120.77

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Solution

The fourth proportional to 654,410.14, 981,586.65 and 205,120.77 is: 307,672.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,410.14 : 981,586.65 = 205,120.77 : x
  2. Step 2: Convert to fraction form
    654,410.14/981,586.65 = 205,120.77/x
  3. Step 3: Cross multiply
    654,410.14x = 981,586.65 × 205,120.77
  4. Step 4: Simplify right side
    654,410.14x = 201,343,809,469.72
  5. Step 5: Solve for x
    x = 201,343,809,469.72/654,410.14
  6. Step 6: Final answer
    x = 307,672.20

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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.