Home / 1,978,055.78-2,730,249.22-1,162,805.78

Finding the Fourth Proportional to 1,978,055.78, 2,730,249.22 and 1,162,805.78

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Solution

The fourth proportional to 1,978,055.78, 2,730,249.22 and 1,162,805.78 is: 1,604,984.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,055.78 : 2,730,249.22 = 1,162,805.78 : x
  2. Step 2: Convert to fraction form
    1,978,055.78/2,730,249.22 = 1,162,805.78/x
  3. Step 3: Cross multiply
    1,978,055.78x = 2,730,249.22 × 1,162,805.78
  4. Step 4: Simplify right side
    1,978,055.78x = 3,174,749,573,856.49
  5. Step 5: Solve for x
    x = 3,174,749,573,856.49/1,978,055.78
  6. Step 6: Final answer
    x = 1,604,984.86

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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.