Home / 831,310.07-1,147,207.23-449,336.86

Finding the Fourth Proportional to 831,310.07, 1,147,207.23 and 449,336.86

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Solution

The fourth proportional to 831,310.07, 1,147,207.23 and 449,336.86 is: 620,084.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,310.07 : 1,147,207.23 = 449,336.86 : x
  2. Step 2: Convert to fraction form
    831,310.07/1,147,207.23 = 449,336.86/x
  3. Step 3: Cross multiply
    831,310.07x = 1,147,207.23 × 449,336.86
  4. Step 4: Simplify right side
    831,310.07x = 515,482,491,629.48
  5. Step 5: Solve for x
    x = 515,482,491,629.48/831,310.07
  6. Step 6: Final answer
    x = 620,084.51

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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.