Home / 2,116,997.82-2,920,813.36-1,199,081.12

Finding the Fourth Proportional to 2,116,997.82, 2,920,813.36 and 1,199,081.12

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Solution

The fourth proportional to 2,116,997.82, 2,920,813.36 and 1,199,081.12 is: 1,654,367.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116,997.82 : 2,920,813.36 = 1,199,081.12 : x
  2. Step 2: Convert to fraction form
    2,116,997.82/2,920,813.36 = 1,199,081.12/x
  3. Step 3: Cross multiply
    2,116,997.82x = 2,920,813.36 × 1,199,081.12
  4. Step 4: Simplify right side
    2,116,997.82x = 3,502,292,137,417.99
  5. Step 5: Solve for x
    x = 3,502,292,137,417.99/2,116,997.82
  6. Step 6: Final answer
    x = 1,654,367.38

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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.