Home / 1,989,320.38-2,981,856.09-1,134,551.51

Finding the Fourth Proportional to 1,989,320.38, 2,981,856.09 and 1,134,551.51

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Solution

The fourth proportional to 1,989,320.38, 2,981,856.09 and 1,134,551.51 is: 1,700,615.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,320.38 : 2,981,856.09 = 1,134,551.51 : x
  2. Step 2: Convert to fraction form
    1,989,320.38/2,981,856.09 = 1,134,551.51/x
  3. Step 3: Cross multiply
    1,989,320.38x = 2,981,856.09 × 1,134,551.51
  4. Step 4: Simplify right side
    1,989,320.38x = 3,383,069,310,348.35
  5. Step 5: Solve for x
    x = 3,383,069,310,348.35/1,989,320.38
  6. Step 6: Final answer
    x = 1,700,615.62

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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.