Home / 1,511,759.90-2,086,231.56-823,429.63

Finding the Fourth Proportional to 1,511,759.90, 2,086,231.56 and 823,429.63

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Solution

The fourth proportional to 1,511,759.90, 2,086,231.56 and 823,429.63 is: 1,136,334.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,759.90 : 2,086,231.56 = 823,429.63 : x
  2. Step 2: Convert to fraction form
    1,511,759.90/2,086,231.56 = 823,429.63/x
  3. Step 3: Cross multiply
    1,511,759.90x = 2,086,231.56 × 823,429.63
  4. Step 4: Simplify right side
    1,511,759.90x = 1,717,864,881,065.05
  5. Step 5: Solve for x
    x = 1,717,864,881,065.05/1,511,759.90
  6. Step 6: Final answer
    x = 1,136,334.47

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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.