Home / 981,571.28-1,472,375.36-307,637.67

Finding the Fourth Proportional to 981,571.28, 1,472,375.36 and 307,637.67

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Solution

The fourth proportional to 981,571.28, 1,472,375.36 and 307,637.67 is: 461,462.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,571.28 : 1,472,375.36 = 307,637.67 : x
  2. Step 2: Convert to fraction form
    981,571.28/1,472,375.36 = 307,637.67/x
  3. Step 3: Cross multiply
    981,571.28x = 1,472,375.36 × 307,637.67
  4. Step 4: Simplify right side
    981,571.28x = 452,958,123,577.62
  5. Step 5: Solve for x
    x = 452,958,123,577.62/981,571.28
  6. Step 6: Final answer
    x = 461,462.29

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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.