Home / 1,391,715.62-2,084,029.57-916,961.66

Finding the Fourth Proportional to 1,391,715.62, 2,084,029.57 and 916,961.66

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Solution

The fourth proportional to 1,391,715.62, 2,084,029.57 and 916,961.66 is: 1,373,107.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,715.62 : 2,084,029.57 = 916,961.66 : x
  2. Step 2: Convert to fraction form
    1,391,715.62/2,084,029.57 = 916,961.66/x
  3. Step 3: Cross multiply
    1,391,715.62x = 2,084,029.57 × 916,961.66
  4. Step 4: Simplify right side
    1,391,715.62x = 1,910,975,213,996.29
  5. Step 5: Solve for x
    x = 1,910,975,213,996.29/1,391,715.62
  6. Step 6: Final answer
    x = 1,373,107.54

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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.