Home / 1,268,428.30-1,902,351.24-756,238.36

Finding the Fourth Proportional to 1,268,428.30, 1,902,351.24 and 756,238.36

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Solution

The fourth proportional to 1,268,428.30, 1,902,351.24 and 756,238.36 is: 1,134,183.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,428.30 : 1,902,351.24 = 756,238.36 : x
  2. Step 2: Convert to fraction form
    1,268,428.30/1,902,351.24 = 756,238.36/x
  3. Step 3: Cross multiply
    1,268,428.30x = 1,902,351.24 × 756,238.36
  4. Step 4: Simplify right side
    1,268,428.30x = 1,438,630,981,881.57
  5. Step 5: Solve for x
    x = 1,438,630,981,881.57/1,268,428.30
  6. Step 6: Final answer
    x = 1,134,183.92

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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.