Finding the Fourth Proportional to 3,187,815.84, 4,399,147.14 and 1,737,506.82
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Solution
The fourth proportional to 3,187,815.84, 4,399,147.14 and 1,737,506.82 is: 2,397,738.31
Step by Step Solution
- Step 1: Write the proportion equation
3,187,815.84 : 4,399,147.14 = 1,737,506.82 : x - Step 2: Convert to fraction form
3,187,815.84/4,399,147.14 = 1,737,506.82/x - Step 3: Cross multiply
3,187,815.84x = 4,399,147.14 × 1,737,506.82 - Step 4: Simplify right side
3,187,815.84x = 7,643,548,157,933.49 - Step 5: Solve for x
x = 7,643,548,157,933.49/3,187,815.84 - Step 6: Final answer
x = 2,397,738.31
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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.