Home / 981,998.45-1,472,999.48-308,131.51

Finding the Fourth Proportional to 981,998.45, 1,472,999.48 and 308,131.51

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Solution

The fourth proportional to 981,998.45, 1,472,999.48 and 308,131.51 is: 462,197.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,998.45 : 1,472,999.48 = 308,131.51 : x
  2. Step 2: Convert to fraction form
    981,998.45/1,472,999.48 = 308,131.51/x
  3. Step 3: Cross multiply
    981,998.45x = 1,472,999.48 × 308,131.51
  4. Step 4: Simplify right side
    981,998.45x = 453,877,554,001.62
  5. Step 5: Solve for x
    x = 453,877,554,001.62/981,998.45
  6. Step 6: Final answer
    x = 462,197.83

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1.5x scale

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.