Home / 789,940.80-1,184,911.20-774,194.40

Finding the Fourth Proportional to 789,940.80, 1,184,911.20 and 774,194.40

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Solution

The fourth proportional to 789,940.80, 1,184,911.20 and 774,194.40 is: 1,161,291.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,940.80 : 1,184,911.20 = 774,194.40 : x
  2. Step 2: Convert to fraction form
    789,940.80/1,184,911.20 = 774,194.40/x
  3. Step 3: Cross multiply
    789,940.80x = 1,184,911.20 × 774,194.40
  4. Step 4: Simplify right side
    789,940.80x = 917,351,615,537.28
  5. Step 5: Solve for x
    x = 917,351,615,537.28/789,940.80
  6. Step 6: Final answer
    x = 1,161,291.60

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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.