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Finding the Fourth Proportional to 419,475.03, 628,039.99 and 226,658.63

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Solution

The fourth proportional to 419,475.03, 628,039.99 and 226,658.63 is: 339,354.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,475.03 : 628,039.99 = 226,658.63 : x
  2. Step 2: Convert to fraction form
    419,475.03/628,039.99 = 226,658.63/x
  3. Step 3: Cross multiply
    419,475.03x = 628,039.99 × 226,658.63
  4. Step 4: Simplify right side
    419,475.03x = 142,350,683,718.61
  5. Step 5: Solve for x
    x = 142,350,683,718.61/419,475.03
  6. Step 6: Final answer
    x = 339,354.37

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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.