Home / 981,991.62-1,473,133.29-308,128.38

Finding the Fourth Proportional to 981,991.62, 1,473,133.29 and 308,128.38

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Solution

The fourth proportional to 981,991.62, 1,473,133.29 and 308,128.38 is: 462,238.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,991.62 : 1,473,133.29 = 308,128.38 : x
  2. Step 2: Convert to fraction form
    981,991.62/1,473,133.29 = 308,128.38/x
  3. Step 3: Cross multiply
    981,991.62x = 1,473,133.29 × 308,128.38
  4. Step 4: Simplify right side
    981,991.62x = 453,914,174,171.77
  5. Step 5: Solve for x
    x = 453,914,174,171.77/981,991.62
  6. Step 6: Final answer
    x = 462,238.34

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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.