Home / 1,320,339.12-1,981,257.72-713,119.92

Finding the Fourth Proportional to 1,320,339.12, 1,981,257.72 and 713,119.92

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Solution

The fourth proportional to 1,320,339.12, 1,981,257.72 and 713,119.92 is: 1,070,084.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,339.12 : 1,981,257.72 = 713,119.92 : x
  2. Step 2: Convert to fraction form
    1,320,339.12/1,981,257.72 = 713,119.92/x
  3. Step 3: Cross multiply
    1,320,339.12x = 1,981,257.72 × 713,119.92
  4. Step 4: Simplify right side
    1,320,339.12x = 1,412,874,346,785.78
  5. Step 5: Solve for x
    x = 1,412,874,346,785.78/1,320,339.12
  6. Step 6: Final answer
    x = 1,070,084.44

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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.