Home / 1,616,961-2,231,375.94-891,876.36

Finding the Fourth Proportional to 1,616,961, 2,231,375.94 and 891,876.36

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Solution

The fourth proportional to 1,616,961, 2,231,375.94 and 891,876.36 is: 1,230,772.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,616,961 : 2,231,375.94 = 891,876.36 : x
  2. Step 2: Convert to fraction form
    1,616,961/2,231,375.94 = 891,876.36/x
  3. Step 3: Cross multiply
    1,616,961x = 2,231,375.94 × 891,876.36
  4. Step 4: Simplify right side
    1,616,961x = 1,990,111,451,158.78
  5. Step 5: Solve for x
    x = 1,990,111,451,158.78/1,616,961
  6. Step 6: Final answer
    x = 1,230,772.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.