Home / 719,138.88-1,078,428.06-269,614.56

Finding the Fourth Proportional to 719,138.88, 1,078,428.06 and 269,614.56

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Solution

The fourth proportional to 719,138.88, 1,078,428.06 and 269,614.56 is: 404,316.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,138.88 : 1,078,428.06 = 269,614.56 : x
  2. Step 2: Convert to fraction form
    719,138.88/1,078,428.06 = 269,614.56/x
  3. Step 3: Cross multiply
    719,138.88x = 1,078,428.06 × 269,614.56
  4. Step 4: Simplify right side
    719,138.88x = 290,759,906,888.55
  5. Step 5: Solve for x
    x = 290,759,906,888.55/719,138.88
  6. Step 6: Final answer
    x = 404,316.77

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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.