Home / 690,900.78-1,036,351.17-269,881.41

Finding the Fourth Proportional to 690,900.78, 1,036,351.17 and 269,881.41

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Solution

The fourth proportional to 690,900.78, 1,036,351.17 and 269,881.41 is: 404,822.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,900.78 : 1,036,351.17 = 269,881.41 : x
  2. Step 2: Convert to fraction form
    690,900.78/1,036,351.17 = 269,881.41/x
  3. Step 3: Cross multiply
    690,900.78x = 1,036,351.17 × 269,881.41
  4. Step 4: Simplify right side
    690,900.78x = 279,691,915,014.75
  5. Step 5: Solve for x
    x = 279,691,915,014.75/690,900.78
  6. Step 6: Final answer
    x = 404,822.12

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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.