Home / 831,669.67-1,247,316.27-381,958.21

Finding the Fourth Proportional to 831,669.67, 1,247,316.27 and 381,958.21

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Solution

The fourth proportional to 831,669.67, 1,247,316.27 and 381,958.21 is: 572,850.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,669.67 : 1,247,316.27 = 381,958.21 : x
  2. Step 2: Convert to fraction form
    831,669.67/1,247,316.27 = 381,958.21/x
  3. Step 3: Cross multiply
    831,669.67x = 1,247,316.27 × 381,958.21
  4. Step 4: Simplify right side
    831,669.67x = 476,422,689,793.08
  5. Step 5: Solve for x
    x = 476,422,689,793.08/831,669.67
  6. Step 6: Final answer
    x = 572,850.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.