Home / 489,581.68-675,620.86-274,721.24

Finding the Fourth Proportional to 489,581.68, 675,620.86 and 274,721.24

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Solution

The fourth proportional to 489,581.68, 675,620.86 and 274,721.24 is: 379,114.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,581.68 : 675,620.86 = 274,721.24 : x
  2. Step 2: Convert to fraction form
    489,581.68/675,620.86 = 274,721.24/x
  3. Step 3: Cross multiply
    489,581.68x = 675,620.86 × 274,721.24
  4. Step 4: Simplify right side
    489,581.68x = 185,607,400,429.07
  5. Step 5: Solve for x
    x = 185,607,400,429.07/489,581.68
  6. Step 6: Final answer
    x = 379,114.27

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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.