Home / 1,892,965.89-2,836,575.77-1,387,863.12

Finding the Fourth Proportional to 1,892,965.89, 2,836,575.77 and 1,387,863.12

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Solution

The fourth proportional to 1,892,965.89, 2,836,575.77 and 1,387,863.12 is: 2,079,688.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,892,965.89 : 2,836,575.77 = 1,387,863.12 : x
  2. Step 2: Convert to fraction form
    1,892,965.89/2,836,575.77 = 1,387,863.12/x
  3. Step 3: Cross multiply
    1,892,965.89x = 2,836,575.77 × 1,387,863.12
  4. Step 4: Simplify right side
    1,892,965.89x = 3,936,778,891,329.29
  5. Step 5: Solve for x
    x = 3,936,778,891,329.29/1,892,965.89
  6. Step 6: Final answer
    x = 2,079,688.24

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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.