Home / 1,661,071.85-2,489,664.07-762,600.31

Finding the Fourth Proportional to 1,661,071.85, 2,489,664.07 and 762,600.31

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Solution

The fourth proportional to 1,661,071.85, 2,489,664.07 and 762,600.31 is: 1,143,008.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661,071.85 : 2,489,664.07 = 762,600.31 : x
  2. Step 2: Convert to fraction form
    1,661,071.85/2,489,664.07 = 762,600.31/x
  3. Step 3: Cross multiply
    1,661,071.85x = 2,489,664.07 × 762,600.31
  4. Step 4: Simplify right side
    1,661,071.85x = 1,898,618,591,577.86
  5. Step 5: Solve for x
    x = 1,898,618,591,577.86/1,661,071.85
  6. Step 6: Final answer
    x = 1,143,008.11

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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.