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Finding the Fourth Proportional to 603,620.78, 832,946.83 and 331,674.62

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Solution

The fourth proportional to 603,620.78, 832,946.83 and 331,674.62 is: 457,683.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,620.78 : 832,946.83 = 331,674.62 : x
  2. Step 2: Convert to fraction form
    603,620.78/832,946.83 = 331,674.62/x
  3. Step 3: Cross multiply
    603,620.78x = 832,946.83 × 331,674.62
  4. Step 4: Simplify right side
    603,620.78x = 276,267,318,326.53
  5. Step 5: Solve for x
    x = 276,267,318,326.53/603,620.78
  6. Step 6: Final answer
    x = 457,683.58

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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.