Finding the Fourth Proportional to 4,942,965.75, 6,821,396.42 and 2,796,789.75
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Solution
The fourth proportional to 4,942,965.75, 6,821,396.42 and 2,796,789.75 is: 3,859,628.52
Step by Step Solution
- Step 1: Write the proportion equation
4,942,965.75 : 6,821,396.42 = 2,796,789.75 : x - Step 2: Convert to fraction form
4,942,965.75/6,821,396.42 = 2,796,789.75/x - Step 3: Cross multiply
4,942,965.75x = 6,821,396.42 × 2,796,789.75 - Step 4: Simplify right side
4,942,965.75x = 19,078,011,574,158.75 - Step 5: Solve for x
x = 19,078,011,574,158.75/4,942,965.75 - Step 6: Final answer
x = 3,859,628.52
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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.