Home / 489,944.63-734,963.31-190,448.34

Finding the Fourth Proportional to 489,944.63, 734,963.31 and 190,448.34

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Solution

The fourth proportional to 489,944.63, 734,963.31 and 190,448.34 is: 285,690.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,944.63 : 734,963.31 = 190,448.34 : x
  2. Step 2: Convert to fraction form
    489,944.63/734,963.31 = 190,448.34/x
  3. Step 3: Cross multiply
    489,944.63x = 734,963.31 × 190,448.34
  4. Step 4: Simplify right side
    489,944.63x = 139,972,542,350.41
  5. Step 5: Solve for x
    x = 139,972,542,350.41/489,944.63
  6. Step 6: Final answer
    x = 285,690.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.