Home / 831,442.15-1,147,391.85-449,468.92

Finding the Fourth Proportional to 831,442.15, 1,147,391.85 and 449,468.92

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Solution

The fourth proportional to 831,442.15, 1,147,391.85 and 449,468.92 is: 620,268.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,442.15 : 1,147,391.85 = 449,468.92 : x
  2. Step 2: Convert to fraction form
    831,442.15/1,147,391.85 = 449,468.92/x
  3. Step 3: Cross multiply
    831,442.15x = 1,147,391.85 × 449,468.92
  4. Step 4: Simplify right side
    831,442.15x = 515,716,975,636.30
  5. Step 5: Solve for x
    x = 515,716,975,636.30/831,442.15
  6. Step 6: Final answer
    x = 620,268.02

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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.