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Finding the Fourth Proportional to 617,660.29, 852,250.01 and 388,084.57

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Solution

The fourth proportional to 617,660.29, 852,250.01 and 388,084.57 is: 535,480.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,660.29 : 852,250.01 = 388,084.57 : x
  2. Step 2: Convert to fraction form
    617,660.29/852,250.01 = 388,084.57/x
  3. Step 3: Cross multiply
    617,660.29x = 852,250.01 × 388,084.57
  4. Step 4: Simplify right side
    617,660.29x = 330,745,074,592.30
  5. Step 5: Solve for x
    x = 330,745,074,592.30/617,660.29
  6. Step 6: Final answer
    x = 535,480.56

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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.