Finding the Fourth Proportional to 791,147.97, 1,091,786.88 and 428,570.70
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Solution
The fourth proportional to 791,147.97, 1,091,786.88 and 428,570.70 is: 591,429.02
Step by Step Solution
- Step 1: Write the proportion equation
791,147.97 : 1,091,786.88 = 428,570.70 : x - Step 2: Convert to fraction form
791,147.97/1,091,786.88 = 428,570.70/x - Step 3: Cross multiply
791,147.97x = 1,091,786.88 × 428,570.70 - Step 4: Simplify right side
791,147.97x = 467,907,867,412.42 - Step 5: Solve for x
x = 467,907,867,412.42/791,147.97 - Step 6: Final answer
x = 591,429.02
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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.