Finding the Fourth Proportional to 2,136,907.90, 2,948,922.13 and 1,170,020.62
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Solution
The fourth proportional to 2,136,907.90, 2,948,922.13 and 1,170,020.62 is: 1,614,622.55
Step by Step Solution
- Step 1: Write the proportion equation
2,136,907.90 : 2,948,922.13 = 1,170,020.62 : x - Step 2: Convert to fraction form
2,136,907.90/2,948,922.13 = 1,170,020.62/x - Step 3: Cross multiply
2,136,907.90x = 2,948,922.13 × 1,170,020.62 - Step 4: Simplify right side
2,136,907.90x = 3,450,299,678,279.61 - Step 5: Solve for x
x = 3,450,299,678,279.61/2,136,907.90 - Step 6: Final answer
x = 1,614,622.55
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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.