Home / 1,290,911.09-1,936,344.75-449,440.97

Finding the Fourth Proportional to 1,290,911.09, 1,936,344.75 and 449,440.97

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Solution

The fourth proportional to 1,290,911.09, 1,936,344.75 and 449,440.97 is: 674,153.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,911.09 : 1,936,344.75 = 449,440.97 : x
  2. Step 2: Convert to fraction form
    1,290,911.09/1,936,344.75 = 449,440.97/x
  3. Step 3: Cross multiply
    1,290,911.09x = 1,936,344.75 × 449,440.97
  4. Step 4: Simplify right side
    1,290,911.09x = 870,272,653,012.68
  5. Step 5: Solve for x
    x = 870,272,653,012.68/1,290,911.09
  6. Step 6: Final answer
    x = 674,153.83

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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.