Home / 690,899.26-1,036,348.93-269,879.90

Finding the Fourth Proportional to 690,899.26, 1,036,348.93 and 269,879.90

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Solution

The fourth proportional to 690,899.26, 1,036,348.93 and 269,879.90 is: 404,819.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,899.26 : 1,036,348.93 = 269,879.90 : x
  2. Step 2: Convert to fraction form
    690,899.26/1,036,348.93 = 269,879.90/x
  3. Step 3: Cross multiply
    690,899.26x = 1,036,348.93 × 269,879.90
  4. Step 4: Simplify right side
    690,899.26x = 279,689,745,593.51
  5. Step 5: Solve for x
    x = 279,689,745,593.51/690,899.26
  6. Step 6: Final answer
    x = 404,819.87

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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.