Home / 1,985,548.05-2,979,162.06-1,085,939.55

Finding the Fourth Proportional to 1,985,548.05, 2,979,162.06 and 1,085,939.55

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Solution

The fourth proportional to 1,985,548.05, 2,979,162.06 and 1,085,939.55 is: 1,629,368.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,548.05 : 2,979,162.06 = 1,085,939.55 : x
  2. Step 2: Convert to fraction form
    1,985,548.05/2,979,162.06 = 1,085,939.55/x
  3. Step 3: Cross multiply
    1,985,548.05x = 2,979,162.06 × 1,085,939.55
  4. Step 4: Simplify right side
    1,985,548.05x = 3,235,189,906,813.47
  5. Step 5: Solve for x
    x = 3,235,189,906,813.47/1,985,548.05
  6. Step 6: Final answer
    x = 1,629,368.73

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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.