Home / 831,883.96-1,147,999.86-449,910.74

Finding the Fourth Proportional to 831,883.96, 1,147,999.86 and 449,910.74

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Solution

The fourth proportional to 831,883.96, 1,147,999.86 and 449,910.74 is: 620,876.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,883.96 : 1,147,999.86 = 449,910.74 : x
  2. Step 2: Convert to fraction form
    831,883.96/1,147,999.86 = 449,910.74/x
  3. Step 3: Cross multiply
    831,883.96x = 1,147,999.86 × 449,910.74
  4. Step 4: Simplify right side
    831,883.96x = 516,497,458,542.94
  5. Step 5: Solve for x
    x = 516,497,458,542.94/831,883.96
  6. Step 6: Final answer
    x = 620,876.81

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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.