Finding the Fourth Proportional to 3,054,807.08, 4,215,636.56 and 1,678,239.98
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Solution
The fourth proportional to 3,054,807.08, 4,215,636.56 and 1,678,239.98 is: 2,315,972.70
Step by Step Solution
- Step 1: Write the proportion equation
3,054,807.08 : 4,215,636.56 = 1,678,239.98 : x - Step 2: Convert to fraction form
3,054,807.08/4,215,636.56 = 1,678,239.98/x - Step 3: Cross multiply
3,054,807.08x = 4,215,636.56 × 1,678,239.98 - Step 4: Simplify right side
3,054,807.08x = 7,074,849,816,141.67 - Step 5: Solve for x
x = 7,074,849,816,141.67/3,054,807.08 - Step 6: Final answer
x = 2,315,972.70
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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.