Home / 831,551.96-1,147,541.58-449,578.75

Finding the Fourth Proportional to 831,551.96, 1,147,541.58 and 449,578.75

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Solution

The fourth proportional to 831,551.96, 1,147,541.58 and 449,578.75 is: 620,418.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,551.96 : 1,147,541.58 = 449,578.75 : x
  2. Step 2: Convert to fraction form
    831,551.96/1,147,541.58 = 449,578.75/x
  3. Step 3: Cross multiply
    831,551.96x = 1,147,541.58 × 449,578.75
  4. Step 4: Simplify right side
    831,551.96x = 515,910,309,109.43
  5. Step 5: Solve for x
    x = 515,910,309,109.43/831,551.96
  6. Step 6: Final answer
    x = 620,418.61

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Double scale
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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.