Home / 1,011,745.98-1,517,857.38-328,629.78

Finding the Fourth Proportional to 1,011,745.98, 1,517,857.38 and 328,629.78

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Solution

The fourth proportional to 1,011,745.98, 1,517,857.38 and 328,629.78 is: 493,022.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,745.98 : 1,517,857.38 = 328,629.78 : x
  2. Step 2: Convert to fraction form
    1,011,745.98/1,517,857.38 = 328,629.78/x
  3. Step 3: Cross multiply
    1,011,745.98x = 1,517,857.38 × 328,629.78
  4. Step 4: Simplify right side
    1,011,745.98x = 498,813,136,860.78
  5. Step 5: Solve for x
    x = 498,813,136,860.78/1,011,745.98
  6. Step 6: Final answer
    x = 493,022.11

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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.