Finding the Fourth Proportional to 2,938,181.80, 4,407,272.70 and 1,678,469.80
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Solution
The fourth proportional to 2,938,181.80, 4,407,272.70 and 1,678,469.80 is: 2,517,704.70
Step by Step Solution
- Step 1: Write the proportion equation
2,938,181.80 : 4,407,272.70 = 1,678,469.80 : x - Step 2: Convert to fraction form
2,938,181.80/4,407,272.70 = 1,678,469.80/x - Step 3: Cross multiply
2,938,181.80x = 4,407,272.70 × 1,678,469.80 - Step 4: Simplify right side
2,938,181.80x = 7,397,474,127,314.46 - Step 5: Solve for x
x = 7,397,474,127,314.46/2,938,181.80 - Step 6: Final answer
x = 2,517,704.70
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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.