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Finding the Fourth Proportional to 419,474.03, 628,038.49 and 226,657.63

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Solution

The fourth proportional to 419,474.03, 628,038.49 and 226,657.63 is: 339,352.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,474.03 : 628,038.49 = 226,657.63 : x
  2. Step 2: Convert to fraction form
    419,474.03/628,038.49 = 226,657.63/x
  3. Step 3: Cross multiply
    419,474.03x = 628,038.49 × 226,657.63
  4. Step 4: Simplify right side
    419,474.03x = 142,349,715,692.18
  5. Step 5: Solve for x
    x = 142,349,715,692.18/419,474.03
  6. Step 6: Final answer
    x = 339,352.87

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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.