Home / 654,918.06-981,375.57-440,893.26

Finding the Fourth Proportional to 654,918.06, 981,375.57 and 440,893.26

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Solution

The fourth proportional to 654,918.06, 981,375.57 and 440,893.26 is: 660,665.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,918.06 : 981,375.57 = 440,893.26 : x
  2. Step 2: Convert to fraction form
    654,918.06/981,375.57 = 440,893.26/x
  3. Step 3: Cross multiply
    654,918.06x = 981,375.57 × 440,893.26
  4. Step 4: Simplify right side
    654,918.06x = 432,681,874,341.66
  5. Step 5: Solve for x
    x = 432,681,874,341.66/654,918.06
  6. Step 6: Final answer
    x = 660,665.66

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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.