Home / 491,048.45-677,640.33-276,188.52

Finding the Fourth Proportional to 491,048.45, 677,640.33 and 276,188.52

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Solution

The fourth proportional to 491,048.45, 677,640.33 and 276,188.52 is: 381,136.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,048.45 : 677,640.33 = 276,188.52 : x
  2. Step 2: Convert to fraction form
    491,048.45/677,640.33 = 276,188.52/x
  3. Step 3: Cross multiply
    491,048.45x = 677,640.33 × 276,188.52
  4. Step 4: Simplify right side
    491,048.45x = 187,156,479,835.01
  5. Step 5: Solve for x
    x = 187,156,479,835.01/491,048.45
  6. Step 6: Final answer
    x = 381,136.49

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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.