Home / 1,511,759.78-2,086,231.39-823,429.50

Finding the Fourth Proportional to 1,511,759.78, 2,086,231.39 and 823,429.50

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Solution

The fourth proportional to 1,511,759.78, 2,086,231.39 and 823,429.50 is: 1,136,334.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,759.78 : 2,086,231.39 = 823,429.50 : x
  2. Step 2: Convert to fraction form
    1,511,759.78/2,086,231.39 = 823,429.50/x
  3. Step 3: Cross multiply
    1,511,759.78x = 2,086,231.39 × 823,429.50
  4. Step 4: Simplify right side
    1,511,759.78x = 1,717,864,466,234.86
  5. Step 5: Solve for x
    x = 1,717,864,466,234.86/1,511,759.78
  6. Step 6: Final answer
    x = 1,136,334.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.