Home / 690,908.86-1,036,363.30-269,889.49

Finding the Fourth Proportional to 690,908.86, 1,036,363.30 and 269,889.49

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Solution

The fourth proportional to 690,908.86, 1,036,363.30 and 269,889.49 is: 404,834.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,908.86 : 1,036,363.30 = 269,889.49 : x
  2. Step 2: Convert to fraction form
    690,908.86/1,036,363.30 = 269,889.49/x
  3. Step 3: Cross multiply
    690,908.86x = 1,036,363.30 × 269,889.49
  4. Step 4: Simplify right side
    690,908.86x = 279,703,562,491.72
  5. Step 5: Solve for x
    x = 279,703,562,491.72/690,908.86
  6. Step 6: Final answer
    x = 404,834.24

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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.