Home / 807,997.97-1,115,044.72-445,434.80

Finding the Fourth Proportional to 807,997.97, 1,115,044.72 and 445,434.80

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Solution

The fourth proportional to 807,997.97, 1,115,044.72 and 445,434.80 is: 614,704.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,997.97 : 1,115,044.72 = 445,434.80 : x
  2. Step 2: Convert to fraction form
    807,997.97/1,115,044.72 = 445,434.80/x
  3. Step 3: Cross multiply
    807,997.97x = 1,115,044.72 × 445,434.80
  4. Step 4: Simplify right side
    807,997.97x = 496,679,722,262.76
  5. Step 5: Solve for x
    x = 496,679,722,262.76/807,997.97
  6. Step 6: Final answer
    x = 614,704.17

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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.