Home / 491,292.45-677,996.82-276,440.13

Finding the Fourth Proportional to 491,292.45, 677,996.82 and 276,440.13

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Solution

The fourth proportional to 491,292.45, 677,996.82 and 276,440.13 is: 381,494.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,292.45 : 677,996.82 = 276,440.13 : x
  2. Step 2: Convert to fraction form
    491,292.45/677,996.82 = 276,440.13/x
  3. Step 3: Cross multiply
    491,292.45x = 677,996.82 × 276,440.13
  4. Step 4: Simplify right side
    491,292.45x = 187,425,529,060.39
  5. Step 5: Solve for x
    x = 187,425,529,060.39/491,292.45
  6. Step 6: Final answer
    x = 381,494.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.