Home / 981,231.55-1,472,418.36-412,571.45

Finding the Fourth Proportional to 981,231.55, 1,472,418.36 and 412,571.45

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Solution

The fourth proportional to 981,231.55, 1,472,418.36 and 412,571.45 is: 619,097.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,231.55 : 1,472,418.36 = 412,571.45 : x
  2. Step 2: Convert to fraction form
    981,231.55/1,472,418.36 = 412,571.45/x
  3. Step 3: Cross multiply
    981,231.55x = 1,472,418.36 × 412,571.45
  4. Step 4: Simplify right side
    981,231.55x = 607,477,781,472.87
  5. Step 5: Solve for x
    x = 607,477,781,472.87/981,231.55
  6. Step 6: Final answer
    x = 619,097.28

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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.