Home / 690,280.84-1,035,668.94-269,858.44

Finding the Fourth Proportional to 690,280.84, 1,035,668.94 and 269,858.44

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Solution

The fourth proportional to 690,280.84, 1,035,668.94 and 269,858.44 is: 404,884.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,280.84 : 1,035,668.94 = 269,858.44 : x
  2. Step 2: Convert to fraction form
    690,280.84/1,035,668.94 = 269,858.44/x
  3. Step 3: Cross multiply
    690,280.84x = 1,035,668.94 × 269,858.44
  4. Step 4: Simplify right side
    690,280.84x = 279,484,004,504.85
  5. Step 5: Solve for x
    x = 279,484,004,504.85/690,280.84
  6. Step 6: Final answer
    x = 404,884.49

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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.