Home / 3,109,143.78-4,290,627.78-1,802,649.96

Finding the Fourth Proportional to 3,109,143.78, 4,290,627.78 and 1,802,649.96

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Solution

The fourth proportional to 3,109,143.78, 4,290,627.78 and 1,802,649.96 is: 2,487,662.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109,143.78 : 4,290,627.78 = 1,802,649.96 : x
  2. Step 2: Convert to fraction form
    3,109,143.78/4,290,627.78 = 1,802,649.96/x
  3. Step 3: Cross multiply
    3,109,143.78x = 4,290,627.78 × 1,802,649.96
  4. Step 4: Simplify right side
    3,109,143.78x = 7,734,499,995,991.89
  5. Step 5: Solve for x
    x = 7,734,499,995,991.89/3,109,143.78
  6. Step 6: Final answer
    x = 2,487,662.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.