Home / 831,600.80-1,147,610.78-449,627.60

Finding the Fourth Proportional to 831,600.80, 1,147,610.78 and 449,627.60

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Solution

The fourth proportional to 831,600.80, 1,147,610.78 and 449,627.60 is: 620,486.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,600.80 : 1,147,610.78 = 449,627.60 : x
  2. Step 2: Convert to fraction form
    831,600.80/1,147,610.78 = 449,627.60/x
  3. Step 3: Cross multiply
    831,600.80x = 1,147,610.78 × 449,627.60
  4. Step 4: Simplify right side
    831,600.80x = 515,997,480,745.53
  5. Step 5: Solve for x
    x = 515,997,480,745.53/831,600.80
  6. Step 6: Final answer
    x = 620,486.99

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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.