Home / 1,981,145.70-2,971,718.55-561,183.30

Finding the Fourth Proportional to 1,981,145.70, 2,971,718.55 and 561,183.30

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Solution

The fourth proportional to 1,981,145.70, 2,971,718.55 and 561,183.30 is: 841,774.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,145.70 : 2,971,718.55 = 561,183.30 : x
  2. Step 2: Convert to fraction form
    1,981,145.70/2,971,718.55 = 561,183.30/x
  3. Step 3: Cross multiply
    1,981,145.70x = 2,971,718.55 × 561,183.30
  4. Step 4: Simplify right side
    1,981,145.70x = 1,667,678,822,560.22
  5. Step 5: Solve for x
    x = 1,667,678,822,560.22/1,981,145.70
  6. Step 6: Final answer
    x = 841,774.95

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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.