Home / 1,987,281.30-2,981,906.10-1,135,007.40

Finding the Fourth Proportional to 1,987,281.30, 2,981,906.10 and 1,135,007.40

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Solution

The fourth proportional to 1,987,281.30, 2,981,906.10 and 1,135,007.40 is: 1,703,073.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,281.30 : 2,981,906.10 = 1,135,007.40 : x
  2. Step 2: Convert to fraction form
    1,987,281.30/2,981,906.10 = 1,135,007.40/x
  3. Step 3: Cross multiply
    1,987,281.30x = 2,981,906.10 × 1,135,007.40
  4. Step 4: Simplify right side
    1,987,281.30x = 3,384,485,489,605.14
  5. Step 5: Solve for x
    x = 3,384,485,489,605.14/1,987,281.30
  6. Step 6: Final answer
    x = 1,703,073.18

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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.