Home / 2,631,300.78-3,631,299.40-1,485,420.78

Finding the Fourth Proportional to 2,631,300.78, 3,631,299.40 and 1,485,420.78

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Solution

The fourth proportional to 2,631,300.78, 3,631,299.40 and 1,485,420.78 is: 2,049,939.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631,300.78 : 3,631,299.40 = 1,485,420.78 : x
  2. Step 2: Convert to fraction form
    2,631,300.78/3,631,299.40 = 1,485,420.78/x
  3. Step 3: Cross multiply
    2,631,300.78x = 3,631,299.40 × 1,485,420.78
  4. Step 4: Simplify right side
    2,631,300.78x = 5,394,007,587,161.53
  5. Step 5: Solve for x
    x = 5,394,007,587,161.53/2,631,300.78
  6. Step 6: Final answer
    x = 2,049,939.57

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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.