Home / 831,745.80-1,247,607.18-200,654.28

Finding the Fourth Proportional to 831,745.80, 1,247,607.18 and 200,654.28

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Solution

The fourth proportional to 831,745.80, 1,247,607.18 and 200,654.28 is: 300,978.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,745.80 : 1,247,607.18 = 200,654.28 : x
  2. Step 2: Convert to fraction form
    831,745.80/1,247,607.18 = 200,654.28/x
  3. Step 3: Cross multiply
    831,745.80x = 1,247,607.18 × 200,654.28
  4. Step 4: Simplify right side
    831,745.80x = 250,337,720,425.73
  5. Step 5: Solve for x
    x = 250,337,720,425.73/831,745.80
  6. Step 6: Final answer
    x = 300,978.64

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1.5x scale

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.