Finding the Fourth Proportional to 2,297,915.82, 3,170,643.12 and 1,330,988.40
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Solution
The fourth proportional to 2,297,915.82, 3,170,643.12 and 1,330,988.40 is: 1,836,485.56
Step by Step Solution
- Step 1: Write the proportion equation
2,297,915.82 : 3,170,643.12 = 1,330,988.40 : x - Step 2: Convert to fraction form
2,297,915.82/3,170,643.12 = 1,330,988.40/x - Step 3: Cross multiply
2,297,915.82x = 3,170,643.12 × 1,330,988.40 - Step 4: Simplify right side
2,297,915.82x = 4,220,089,213,259.81 - Step 5: Solve for x
x = 4,220,089,213,259.81/2,297,915.82 - Step 6: Final answer
x = 1,836,485.56
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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.