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Finding the Fourth Proportional to 419,613.65, 629,424.83 and 335,905.92

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Solution

The fourth proportional to 419,613.65, 629,424.83 and 335,905.92 is: 503,862.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,613.65 : 629,424.83 = 335,905.92 : x
  2. Step 2: Convert to fraction form
    419,613.65/629,424.83 = 335,905.92/x
  3. Step 3: Cross multiply
    419,613.65x = 629,424.83 × 335,905.92
  4. Step 4: Simplify right side
    419,613.65x = 211,427,527,431.76
  5. Step 5: Solve for x
    x = 211,427,527,431.76/419,613.65
  6. Step 6: Final answer
    x = 503,862.37

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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.