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Finding the Fourth Proportional to 388,630.94, 582,882.84 and 275,970.35

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Solution

The fourth proportional to 388,630.94, 582,882.84 and 275,970.35 is: 413,910.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,630.94 : 582,882.84 = 275,970.35 : x
  2. Step 2: Convert to fraction form
    388,630.94/582,882.84 = 275,970.35/x
  3. Step 3: Cross multiply
    388,630.94x = 582,882.84 × 275,970.35
  4. Step 4: Simplify right side
    388,630.94x = 160,858,382,821.00
  5. Step 5: Solve for x
    x = 160,858,382,821.00/388,630.94
  6. Step 6: Final answer
    x = 413,910.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.