Home / 782,954.82-1,081,007.22-489,053.81

Finding the Fourth Proportional to 782,954.82, 1,081,007.22 and 489,053.81

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Solution

The fourth proportional to 782,954.82, 1,081,007.22 and 489,053.81 is: 675,225.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,954.82 : 1,081,007.22 = 489,053.81 : x
  2. Step 2: Convert to fraction form
    782,954.82/1,081,007.22 = 489,053.81/x
  3. Step 3: Cross multiply
    782,954.82x = 1,081,007.22 × 489,053.81
  4. Step 4: Simplify right side
    782,954.82x = 528,670,694,173.47
  5. Step 5: Solve for x
    x = 528,670,694,173.47/782,954.82
  6. Step 6: Final answer
    x = 675,225.03

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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.