Home / 690,900.11-1,036,350.17-269,880.74

Finding the Fourth Proportional to 690,900.11, 1,036,350.17 and 269,880.74

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Solution

The fourth proportional to 690,900.11, 1,036,350.17 and 269,880.74 is: 404,821.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,900.11 : 1,036,350.17 = 269,880.74 : x
  2. Step 2: Convert to fraction form
    690,900.11/1,036,350.17 = 269,880.74/x
  3. Step 3: Cross multiply
    690,900.11x = 1,036,350.17 × 269,880.74
  4. Step 4: Simplify right side
    690,900.11x = 279,690,950,778.73
  5. Step 5: Solve for x
    x = 279,690,950,778.73/690,900.11
  6. Step 6: Final answer
    x = 404,821.11

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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.