Home / 831,883.53-1,147,999.32-449,910.21

Finding the Fourth Proportional to 831,883.53, 1,147,999.32 and 449,910.21

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Solution

The fourth proportional to 831,883.53, 1,147,999.32 and 449,910.21 is: 620,876.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,883.53 : 1,147,999.32 = 449,910.21 : x
  2. Step 2: Convert to fraction form
    831,883.53/1,147,999.32 = 449,910.21/x
  3. Step 3: Cross multiply
    831,883.53x = 1,147,999.32 × 449,910.21
  4. Step 4: Simplify right side
    831,883.53x = 516,496,615,141.06
  5. Step 5: Solve for x
    x = 516,496,615,141.06/831,883.53
  6. Step 6: Final answer
    x = 620,876.12

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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.