Home / 489,709.53-675,799.16-274,849.61

Finding the Fourth Proportional to 489,709.53, 675,799.16 and 274,849.61

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Solution

The fourth proportional to 489,709.53, 675,799.16 and 274,849.61 is: 379,292.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,709.53 : 675,799.16 = 274,849.61 : x
  2. Step 2: Convert to fraction form
    489,709.53/675,799.16 = 274,849.61/x
  3. Step 3: Cross multiply
    489,709.53x = 675,799.16 × 274,849.61
  4. Step 4: Simplify right side
    489,709.53x = 185,743,130,811.08
  5. Step 5: Solve for x
    x = 185,743,130,811.08/489,709.53
  6. Step 6: Final answer
    x = 379,292.46

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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.