Finding the Fourth Proportional to 3,586,136.70, 5,379,205.05 and 1,311,656.70
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Solution
The fourth proportional to 3,586,136.70, 5,379,205.05 and 1,311,656.70 is: 1,967,485.05
Step by Step Solution
- Step 1: Write the proportion equation
3,586,136.70 : 5,379,205.05 = 1,311,656.70 : x - Step 2: Convert to fraction form
3,586,136.70/5,379,205.05 = 1,311,656.70/x - Step 3: Cross multiply
3,586,136.70x = 5,379,205.05 × 1,311,656.70 - Step 4: Simplify right side
3,586,136.70x = 7,055,670,344,506.34 - Step 5: Solve for x
x = 7,055,670,344,506.34/3,586,136.70 - Step 6: Final answer
x = 1,967,485.05
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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.