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Finding the Fourth Proportional to 451,949.78, 677,667.74 and 349,330.80

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Solution

The fourth proportional to 451,949.78, 677,667.74 and 349,330.80 is: 523,797.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,949.78 : 677,667.74 = 349,330.80 : x
  2. Step 2: Convert to fraction form
    451,949.78/677,667.74 = 349,330.80/x
  3. Step 3: Cross multiply
    451,949.78x = 677,667.74 × 349,330.80
  4. Step 4: Simplify right side
    451,949.78x = 236,730,213,748.39
  5. Step 5: Solve for x
    x = 236,730,213,748.39/451,949.78
  6. Step 6: Final answer
    x = 523,797.61

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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.