Home / 3,219,893.72-4,829,791.38-823,718.12

Finding the Fourth Proportional to 3,219,893.72, 4,829,791.38 and 823,718.12

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Solution

The fourth proportional to 3,219,893.72, 4,829,791.38 and 823,718.12 is: 1,235,564.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219,893.72 : 4,829,791.38 = 823,718.12 : x
  2. Step 2: Convert to fraction form
    3,219,893.72/4,829,791.38 = 823,718.12/x
  3. Step 3: Cross multiply
    3,219,893.72x = 4,829,791.38 × 823,718.12
  4. Step 4: Simplify right side
    3,219,893.72x = 3,978,386,675,525.81
  5. Step 5: Solve for x
    x = 3,978,386,675,525.81/3,219,893.72
  6. Step 6: Final answer
    x = 1,235,564.59

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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.