Home / 885,186.78-1,327,777.79-379,419.81

Finding the Fourth Proportional to 885,186.78, 1,327,777.79 and 379,419.81

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Solution

The fourth proportional to 885,186.78, 1,327,777.79 and 379,419.81 is: 569,128.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,186.78 : 1,327,777.79 = 379,419.81 : x
  2. Step 2: Convert to fraction form
    885,186.78/1,327,777.79 = 379,419.81/x
  3. Step 3: Cross multiply
    885,186.78x = 1,327,777.79 × 379,419.81
  4. Step 4: Simplify right side
    885,186.78x = 503,785,194,906.92
  5. Step 5: Solve for x
    x = 503,785,194,906.92/885,186.78
  6. Step 6: Final answer
    x = 569,128.69

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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.