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Finding the Fourth Proportional to 603,286.56, 832,227.51 and 385,266.06

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Solution

The fourth proportional to 603,286.56, 832,227.51 and 385,266.06 is: 531,470.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,286.56 : 832,227.51 = 385,266.06 : x
  2. Step 2: Convert to fraction form
    603,286.56/832,227.51 = 385,266.06/x
  3. Step 3: Cross multiply
    603,286.56x = 832,227.51 × 385,266.06
  4. Step 4: Simplify right side
    603,286.56x = 320,629,013,801.31
  5. Step 5: Solve for x
    x = 320,629,013,801.31/603,286.56
  6. Step 6: Final answer
    x = 531,470.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.