Finding the Fourth Proportional to 4,042,687.98, 5,578,824.17 and 2,207,057.55
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Solution
The fourth proportional to 4,042,687.98, 5,578,824.17 and 2,207,057.55 is: 3,045,692.88
Step by Step Solution
- Step 1: Write the proportion equation
4,042,687.98 : 5,578,824.17 = 2,207,057.55 : x - Step 2: Convert to fraction form
4,042,687.98/5,578,824.17 = 2,207,057.55/x - Step 3: Cross multiply
4,042,687.98x = 5,578,824.17 × 2,207,057.55 - Step 4: Simplify right side
4,042,687.98x = 12,312,785,993,485.70 - Step 5: Solve for x
x = 12,312,785,993,485.70/4,042,687.98 - Step 6: Final answer
x = 3,045,692.88
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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.