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Finding the Fourth Proportional to 522,832, 784,248 and 128,848

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Solution

The fourth proportional to 522,832, 784,248 and 128,848 is: 193,272

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,832 : 784,248 = 128,848 : x
  2. Step 2: Convert to fraction form
    522,832/784,248 = 128,848/x
  3. Step 3: Cross multiply
    522,832x = 784,248 × 128,848
  4. Step 4: Simplify right side
    522,832x = 101,048,786,304
  5. Step 5: Solve for x
    x = 101,048,786,304/522,832
  6. Step 6: Final answer
    x = 193,272

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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.