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Finding the Fourth Proportional to 655,697.88, 982,963.29 and 256,247.79

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Solution

The fourth proportional to 655,697.88, 982,963.29 and 256,247.79 is: 384,143.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,697.88 : 982,963.29 = 256,247.79 : x
  2. Step 2: Convert to fraction form
    655,697.88/982,963.29 = 256,247.79/x
  3. Step 3: Cross multiply
    655,697.88x = 982,963.29 × 256,247.79
  4. Step 4: Simplify right side
    655,697.88x = 251,882,170,713.63
  5. Step 5: Solve for x
    x = 251,882,170,713.63/655,697.88
  6. Step 6: Final answer
    x = 384,143.64

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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.