Home / 1,442,716.20-1,990,590.66-932,805

Finding the Fourth Proportional to 1,442,716.20, 1,990,590.66 and 932,805

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Solution

The fourth proportional to 1,442,716.20, 1,990,590.66 and 932,805 is: 1,287,039.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,716.20 : 1,990,590.66 = 932,805 : x
  2. Step 2: Convert to fraction form
    1,442,716.20/1,990,590.66 = 932,805/x
  3. Step 3: Cross multiply
    1,442,716.20x = 1,990,590.66 × 932,805
  4. Step 4: Simplify right side
    1,442,716.20x = 1,856,832,920,601.30
  5. Step 5: Solve for x
    x = 1,856,832,920,601.30/1,442,716.20
  6. Step 6: Final answer
    x = 1,287,039.63

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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.