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Finding the Fourth Proportional to 2,890,408.82, 3,988,473.44 and 1,601,008.28

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Solution

The fourth proportional to 2,890,408.82, 3,988,473.44 and 1,601,008.28 is: 2,209,230.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890,408.82 : 3,988,473.44 = 1,601,008.28 : x
  2. Step 2: Convert to fraction form
    2,890,408.82/3,988,473.44 = 1,601,008.28/x
  3. Step 3: Cross multiply
    2,890,408.82x = 3,988,473.44 × 1,601,008.28
  4. Step 4: Simplify right side
    2,890,408.82x = 6,385,579,002,000.08
  5. Step 5: Solve for x
    x = 6,385,579,002,000.08/2,890,408.82
  6. Step 6: Final answer
    x = 2,209,230.39

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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.