Home / 831,383.46-1,147,310.12-449,409.94

Finding the Fourth Proportional to 831,383.46, 1,147,310.12 and 449,409.94

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Solution

The fourth proportional to 831,383.46, 1,147,310.12 and 449,409.94 is: 620,186.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,383.46 : 1,147,310.12 = 449,409.94 : x
  2. Step 2: Convert to fraction form
    831,383.46/1,147,310.12 = 449,409.94/x
  3. Step 3: Cross multiply
    831,383.46x = 1,147,310.12 × 449,409.94
  4. Step 4: Simplify right side
    831,383.46x = 515,612,570,445.84
  5. Step 5: Solve for x
    x = 515,612,570,445.84/831,383.46
  6. Step 6: Final answer
    x = 620,186.23

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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.