Home / 491,631.88-678,453.11-273,838.81

Finding the Fourth Proportional to 491,631.88, 678,453.11 and 273,838.81

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Solution

The fourth proportional to 491,631.88, 678,453.11 and 273,838.81 is: 377,898.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,631.88 : 678,453.11 = 273,838.81 : x
  2. Step 2: Convert to fraction form
    491,631.88/678,453.11 = 273,838.81/x
  3. Step 3: Cross multiply
    491,631.88x = 678,453.11 × 273,838.81
  4. Step 4: Simplify right side
    491,631.88x = 185,786,792,283.20
  5. Step 5: Solve for x
    x = 185,786,792,283.20/491,631.88
  6. Step 6: Final answer
    x = 377,898.18

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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.