Home / 1,362,518.82-1,880,185.23-789,456.78

Finding the Fourth Proportional to 1,362,518.82, 1,880,185.23 and 789,456.78

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Solution

The fourth proportional to 1,362,518.82, 1,880,185.23 and 789,456.78 is: 1,089,397.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,518.82 : 1,880,185.23 = 789,456.78 : x
  2. Step 2: Convert to fraction form
    1,362,518.82/1,880,185.23 = 789,456.78/x
  3. Step 3: Cross multiply
    1,362,518.82x = 1,880,185.23 × 789,456.78
  4. Step 4: Simplify right side
    1,362,518.82x = 1,484,324,977,479.36
  5. Step 5: Solve for x
    x = 1,484,324,977,479.36/1,362,518.82
  6. Step 6: Final answer
    x = 1,089,397.78

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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.