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Finding the Fourth Proportional to 388,247.84, 582,468.44 and 308,586.40

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Solution

The fourth proportional to 388,247.84, 582,468.44 and 308,586.40 is: 462,956.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,247.84 : 582,468.44 = 308,586.40 : x
  2. Step 2: Convert to fraction form
    388,247.84/582,468.44 = 308,586.40/x
  3. Step 3: Cross multiply
    388,247.84x = 582,468.44 × 308,586.40
  4. Step 4: Simplify right side
    388,247.84x = 179,741,839,013.22
  5. Step 5: Solve for x
    x = 179,741,839,013.22/388,247.84
  6. Step 6: Final answer
    x = 462,956.44

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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.