Home / 885,195.78-1,327,791.30-379,428.84

Finding the Fourth Proportional to 885,195.78, 1,327,791.30 and 379,428.84

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Solution

The fourth proportional to 885,195.78, 1,327,791.30 and 379,428.84 is: 569,142.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,195.78 : 1,327,791.30 = 379,428.84 : x
  2. Step 2: Convert to fraction form
    885,195.78/1,327,791.30 = 379,428.84/x
  3. Step 3: Cross multiply
    885,195.78x = 1,327,791.30 × 379,428.84
  4. Step 4: Simplify right side
    885,195.78x = 503,802,312,721.09
  5. Step 5: Solve for x
    x = 503,802,312,721.09/885,195.78
  6. Step 6: Final answer
    x = 569,142.24

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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.