Home / 489,836.97-675,928.80-274,935.06

Finding the Fourth Proportional to 489,836.97, 675,928.80 and 274,935.06

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Solution

The fourth proportional to 489,836.97, 675,928.80 and 274,935.06 is: 379,384.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,836.97 : 675,928.80 = 274,935.06 : x
  2. Step 2: Convert to fraction form
    489,836.97/675,928.80 = 274,935.06/x
  3. Step 3: Cross multiply
    489,836.97x = 675,928.80 × 274,935.06
  4. Step 4: Simplify right side
    489,836.97x = 185,836,525,183.73
  5. Step 5: Solve for x
    x = 185,836,525,183.73/489,836.97
  6. Step 6: Final answer
    x = 379,384.44

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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.