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Finding the Fourth Proportional to 3,485,805.89, 4,811,325.62 and 1,958,405.09

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Solution

The fourth proportional to 3,485,805.89, 4,811,325.62 and 1,958,405.09 is: 2,703,112.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485,805.89 : 4,811,325.62 = 1,958,405.09 : x
  2. Step 2: Convert to fraction form
    3,485,805.89/4,811,325.62 = 1,958,405.09/x
  3. Step 3: Cross multiply
    3,485,805.89x = 4,811,325.62 × 1,958,405.09
  4. Step 4: Simplify right side
    3,485,805.89x = 9,422,524,550,006.75
  5. Step 5: Solve for x
    x = 9,422,524,550,006.75/3,485,805.89
  6. Step 6: Final answer
    x = 2,703,112.24

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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.