Finding the Fourth Proportional to 3,325,531.60, 4,989,766.20 and 1,618,728.40
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Solution
The fourth proportional to 3,325,531.60, 4,989,766.20 and 1,618,728.40 is: 2,428,807.55
Step by Step Solution
- Step 1: Write the proportion equation
3,325,531.60 : 4,989,766.20 = 1,618,728.40 : x - Step 2: Convert to fraction form
3,325,531.60/4,989,766.20 = 1,618,728.40/x - Step 3: Cross multiply
3,325,531.60x = 4,989,766.20 × 1,618,728.40 - Step 4: Simplify right side
3,325,531.60x = 8,077,076,257,300.08 - Step 5: Solve for x
x = 8,077,076,257,300.08/3,325,531.60 - Step 6: Final answer
x = 2,428,807.55
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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.