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Finding the Fourth Proportional to 617,604.64, 852,100.11 and 345,629.32

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Solution

The fourth proportional to 617,604.64, 852,100.11 and 345,629.32 is: 476,859.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,604.64 : 852,100.11 = 345,629.32 : x
  2. Step 2: Convert to fraction form
    617,604.64/852,100.11 = 345,629.32/x
  3. Step 3: Cross multiply
    617,604.64x = 852,100.11 × 345,629.32
  4. Step 4: Simplify right side
    617,604.64x = 294,510,780,757.09
  5. Step 5: Solve for x
    x = 294,510,780,757.09/617,604.64
  6. Step 6: Final answer
    x = 476,859.73

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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.