Home / 1,689,872.80-2,534,974.80-491,807.20

Finding the Fourth Proportional to 1,689,872.80, 2,534,974.80 and 491,807.20

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Solution

The fourth proportional to 1,689,872.80, 2,534,974.80 and 491,807.20 is: 737,758.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,872.80 : 2,534,974.80 = 491,807.20 : x
  2. Step 2: Convert to fraction form
    1,689,872.80/2,534,974.80 = 491,807.20/x
  3. Step 3: Cross multiply
    1,689,872.80x = 2,534,974.80 × 491,807.20
  4. Step 4: Simplify right side
    1,689,872.80x = 1,246,718,858,458.56
  5. Step 5: Solve for x
    x = 1,246,718,858,458.56/1,689,872.80
  6. Step 6: Final answer
    x = 737,758.99

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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.