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Finding the Fourth Proportional to 603,745.28, 905,611.46 and 154,462.58

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Solution

The fourth proportional to 603,745.28, 905,611.46 and 154,462.58 is: 231,692.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,745.28 : 905,611.46 = 154,462.58 : x
  2. Step 2: Convert to fraction form
    603,745.28/905,611.46 = 154,462.58/x
  3. Step 3: Cross multiply
    603,745.28x = 905,611.46 × 154,462.58
  4. Step 4: Simplify right side
    603,745.28x = 139,883,077,288.80
  5. Step 5: Solve for x
    x = 139,883,077,288.80/603,745.28
  6. Step 6: Final answer
    x = 231,692.21

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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.