Finding the Fourth Proportional to 3,486,578.98, 5,226,872.79 and 1,211,807.78
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Solution
The fourth proportional to 3,486,578.98, 5,226,872.79 and 1,211,807.78 is: 1,816,670.48
Step by Step Solution
- Step 1: Write the proportion equation
3,486,578.98 : 5,226,872.79 = 1,211,807.78 : x - Step 2: Convert to fraction form
3,486,578.98/5,226,872.79 = 1,211,807.78/x - Step 3: Cross multiply
3,486,578.98x = 5,226,872.79 × 1,211,807.78 - Step 4: Simplify right side
3,486,578.98x = 6,333,965,111,992.31 - Step 5: Solve for x
x = 6,333,965,111,992.31/3,486,578.98 - Step 6: Final answer
x = 1,816,670.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.