Home / 1,259,940.07-1,889,917.63-313,310.78

Finding the Fourth Proportional to 1,259,940.07, 1,889,917.63 and 313,310.78

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Solution

The fourth proportional to 1,259,940.07, 1,889,917.63 and 313,310.78 is: 469,968.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,940.07 : 1,889,917.63 = 313,310.78 : x
  2. Step 2: Convert to fraction form
    1,259,940.07/1,889,917.63 = 313,310.78/x
  3. Step 3: Cross multiply
    1,259,940.07x = 1,889,917.63 × 313,310.78
  4. Step 4: Simplify right side
    1,259,940.07x = 592,131,566,791.05
  5. Step 5: Solve for x
    x = 592,131,566,791.05/1,259,940.07
  6. Step 6: Final answer
    x = 469,968.04

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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.