Finding the Fourth Proportional to 827,991.36, 1,241,986.88 and 354,369.60
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Solution
The fourth proportional to 827,991.36, 1,241,986.88 and 354,369.60 is: 531,554.33
Step by Step Solution
- Step 1: Write the proportion equation
827,991.36 : 1,241,986.88 = 354,369.60 : x - Step 2: Convert to fraction form
827,991.36/1,241,986.88 = 354,369.60/x - Step 3: Cross multiply
827,991.36x = 1,241,986.88 × 354,369.60 - Step 4: Simplify right side
827,991.36x = 440,122,393,870.85 - Step 5: Solve for x
x = 440,122,393,870.85/827,991.36 - Step 6: Final answer
x = 531,554.33
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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.