Home / 783,983.61-1,082,361.17-493,843.89

Finding the Fourth Proportional to 783,983.61, 1,082,361.17 and 493,843.89

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Solution

The fourth proportional to 783,983.61, 1,082,361.17 and 493,843.89 is: 681,796.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,983.61 : 1,082,361.17 = 493,843.89 : x
  2. Step 2: Convert to fraction form
    783,983.61/1,082,361.17 = 493,843.89/x
  3. Step 3: Cross multiply
    783,983.61x = 1,082,361.17 × 493,843.89
  4. Step 4: Simplify right side
    783,983.61x = 534,517,448,108.53
  5. Step 5: Solve for x
    x = 534,517,448,108.53/783,983.61
  6. Step 6: Final answer
    x = 681,796.71

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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.