Home / 1,368,131.40-1,887,993.52-756,309.95

Finding the Fourth Proportional to 1,368,131.40, 1,887,993.52 and 756,309.95

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Solution

The fourth proportional to 1,368,131.40, 1,887,993.52 and 756,309.95 is: 1,043,692.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,131.40 : 1,887,993.52 = 756,309.95 : x
  2. Step 2: Convert to fraction form
    1,368,131.40/1,887,993.52 = 756,309.95/x
  3. Step 3: Cross multiply
    1,368,131.40x = 1,887,993.52 × 756,309.95
  4. Step 4: Simplify right side
    1,368,131.40x = 1,427,908,284,711.52
  5. Step 5: Solve for x
    x = 1,427,908,284,711.52/1,368,131.40
  6. Step 6: Final answer
    x = 1,043,692.36

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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.