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Finding the Fourth Proportional to 508,791.14, 702,133.17 and 279,363.29

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Solution

The fourth proportional to 508,791.14, 702,133.17 and 279,363.29 is: 385,522.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,791.14 : 702,133.17 = 279,363.29 : x
  2. Step 2: Convert to fraction form
    508,791.14/702,133.17 = 279,363.29/x
  3. Step 3: Cross multiply
    508,791.14x = 702,133.17 × 279,363.29
  4. Step 4: Simplify right side
    508,791.14x = 196,150,234,144.66
  5. Step 5: Solve for x
    x = 196,150,234,144.66/508,791.14
  6. Step 6: Final answer
    x = 385,522.11

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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.