Home / 489,710.03-675,799.85-274,850.11

Finding the Fourth Proportional to 489,710.03, 675,799.85 and 274,850.11

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Solution

The fourth proportional to 489,710.03, 675,799.85 and 274,850.11 is: 379,293.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,710.03 : 675,799.85 = 274,850.11 : x
  2. Step 2: Convert to fraction form
    489,710.03/675,799.85 = 274,850.11/x
  3. Step 3: Cross multiply
    489,710.03x = 675,799.85 × 274,850.11
  4. Step 4: Simplify right side
    489,710.03x = 185,743,658,357.23
  5. Step 5: Solve for x
    x = 185,743,658,357.23/489,710.03
  6. Step 6: Final answer
    x = 379,293.15

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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.