Home / 654,410.64-981,587.40-205,121.25

Finding the Fourth Proportional to 654,410.64, 981,587.40 and 205,121.25

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Solution

The fourth proportional to 654,410.64, 981,587.40 and 205,121.25 is: 307,672.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,410.64 : 981,587.40 = 205,121.25 : x
  2. Step 2: Convert to fraction form
    654,410.64/981,587.40 = 205,121.25/x
  3. Step 3: Cross multiply
    654,410.64x = 981,587.40 × 205,121.25
  4. Step 4: Simplify right side
    654,410.64x = 201,344,434,472.25
  5. Step 5: Solve for x
    x = 201,344,434,472.25/654,410.64
  6. Step 6: Final answer
    x = 307,672.92

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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.