Home / 831,357.07-1,147,272.25-449,383.85

Finding the Fourth Proportional to 831,357.07, 1,147,272.25 and 449,383.85

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Solution

The fourth proportional to 831,357.07, 1,147,272.25 and 449,383.85 is: 620,149.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,357.07 : 1,147,272.25 = 449,383.85 : x
  2. Step 2: Convert to fraction form
    831,357.07/1,147,272.25 = 449,383.85/x
  3. Step 3: Cross multiply
    831,357.07x = 1,147,272.25 × 449,383.85
  4. Step 4: Simplify right side
    831,357.07x = 515,565,622,447.88
  5. Step 5: Solve for x
    x = 515,565,622,447.88/831,357.07
  6. Step 6: Final answer
    x = 620,149.44

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1.5x scale

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.