Home / 1,519,036.92-2,279,676.82-720,321.12

Finding the Fourth Proportional to 1,519,036.92, 2,279,676.82 and 720,321.12

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Solution

The fourth proportional to 1,519,036.92, 2,279,676.82 and 720,321.12 is: 1,081,013.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519,036.92 : 2,279,676.82 = 720,321.12 : x
  2. Step 2: Convert to fraction form
    1,519,036.92/2,279,676.82 = 720,321.12/x
  3. Step 3: Cross multiply
    1,519,036.92x = 2,279,676.82 × 720,321.12
  4. Step 4: Simplify right side
    1,519,036.92x = 1,642,099,360,220.44
  5. Step 5: Solve for x
    x = 1,642,099,360,220.44/1,519,036.92
  6. Step 6: Final answer
    x = 1,081,013.46

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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.