Finding the Fourth Proportional to 902,843.76, 1,245,964.80 and 515,692.80
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Solution
The fourth proportional to 902,843.76, 1,245,964.80 and 515,692.80 is: 711,679.15
Step by Step Solution
- Step 1: Write the proportion equation
902,843.76 : 1,245,964.80 = 515,692.80 : x - Step 2: Convert to fraction form
902,843.76/1,245,964.80 = 515,692.80/x - Step 3: Cross multiply
902,843.76x = 1,245,964.80 × 515,692.80 - Step 4: Simplify right side
902,843.76x = 642,535,076,413.44 - Step 5: Solve for x
x = 642,535,076,413.44/902,843.76 - Step 6: Final answer
x = 711,679.15
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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.