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Finding the Fourth Proportional to 617,604.26, 852,099.60 and 345,628.94

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Solution

The fourth proportional to 617,604.26, 852,099.60 and 345,628.94 is: 476,859.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,604.26 : 852,099.60 = 345,628.94 : x
  2. Step 2: Convert to fraction form
    617,604.26/852,099.60 = 345,628.94/x
  3. Step 3: Cross multiply
    617,604.26x = 852,099.60 × 345,628.94
  4. Step 4: Simplify right side
    617,604.26x = 294,510,281,406.93
  5. Step 5: Solve for x
    x = 294,510,281,406.93/617,604.26
  6. Step 6: Final answer
    x = 476,859.21

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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.