Finding the Fourth Proportional to 720,517.36, 1,080,965.33 and 258,941.94
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Solution
The fourth proportional to 720,517.36, 1,080,965.33 and 258,941.94 is: 388,480.94
Step by Step Solution
- Step 1: Write the proportion equation
720,517.36 : 1,080,965.33 = 258,941.94 : x - Step 2: Convert to fraction form
720,517.36/1,080,965.33 = 258,941.94/x - Step 3: Cross multiply
720,517.36x = 1,080,965.33 × 258,941.94 - Step 4: Simplify right side
720,517.36x = 279,907,259,622.94 - Step 5: Solve for x
x = 279,907,259,622.94/720,517.36 - Step 6: Final answer
x = 388,480.94
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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.