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Finding the Fourth Proportional to 3,641,786.60, 5,462,679.90 and 945,890.60

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Solution

The fourth proportional to 3,641,786.60, 5,462,679.90 and 945,890.60 is: 1,418,835.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,641,786.60 : 5,462,679.90 = 945,890.60 : x
  2. Step 2: Convert to fraction form
    3,641,786.60/5,462,679.90 = 945,890.60/x
  3. Step 3: Cross multiply
    3,641,786.60x = 5,462,679.90 × 945,890.60
  4. Step 4: Simplify right side
    3,641,786.60x = 5,167,097,568,218.94
  5. Step 5: Solve for x
    x = 5,167,097,568,218.94/3,641,786.60
  6. Step 6: Final answer
    x = 1,418,835.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.