Home / 680,994.32-1,021,136.78-254,179.12

Finding the Fourth Proportional to 680,994.32, 1,021,136.78 and 254,179.12

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Solution

The fourth proportional to 680,994.32, 1,021,136.78 and 254,179.12 is: 381,136.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,994.32 : 1,021,136.78 = 254,179.12 : x
  2. Step 2: Convert to fraction form
    680,994.32/1,021,136.78 = 254,179.12/x
  3. Step 3: Cross multiply
    680,994.32x = 1,021,136.78 × 254,179.12
  4. Step 4: Simplify right side
    680,994.32x = 259,551,649,033.97
  5. Step 5: Solve for x
    x = 259,551,649,033.97/680,994.32
  6. Step 6: Final answer
    x = 381,136.29

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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.