Home / 690,908.78-1,036,363.17-269,889.41

Finding the Fourth Proportional to 690,908.78, 1,036,363.17 and 269,889.41

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Solution

The fourth proportional to 690,908.78, 1,036,363.17 and 269,889.41 is: 404,834.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,908.78 : 1,036,363.17 = 269,889.41 : x
  2. Step 2: Convert to fraction form
    690,908.78/1,036,363.17 = 269,889.41/x
  3. Step 3: Cross multiply
    690,908.78x = 1,036,363.17 × 269,889.41
  4. Step 4: Simplify right side
    690,908.78x = 279,703,444,497.03
  5. Step 5: Solve for x
    x = 279,703,444,497.03/690,908.78
  6. Step 6: Final answer
    x = 404,834.12

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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.