Home / 1,620,992.13-2,236,976.08-885,961.20

Finding the Fourth Proportional to 1,620,992.13, 2,236,976.08 and 885,961.20

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Solution

The fourth proportional to 1,620,992.13, 2,236,976.08 and 885,961.20 is: 1,222,630.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,992.13 : 2,236,976.08 = 885,961.20 : x
  2. Step 2: Convert to fraction form
    1,620,992.13/2,236,976.08 = 885,961.20/x
  3. Step 3: Cross multiply
    1,620,992.13x = 2,236,976.08 × 885,961.20
  4. Step 4: Simplify right side
    1,620,992.13x = 1,981,874,012,208.10
  5. Step 5: Solve for x
    x = 1,981,874,012,208.10/1,620,992.13
  6. Step 6: Final answer
    x = 1,222,630.25

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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.