Finding the Fourth Proportional to 2,993,811.60, 4,490,717.40 and 1,478,220.60
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Solution
The fourth proportional to 2,993,811.60, 4,490,717.40 and 1,478,220.60 is: 2,217,330.90
Step by Step Solution
- Step 1: Write the proportion equation
2,993,811.60 : 4,490,717.40 = 1,478,220.60 : x - Step 2: Convert to fraction form
2,993,811.60/4,490,717.40 = 1,478,220.60/x - Step 3: Cross multiply
2,993,811.60x = 4,490,717.40 × 1,478,220.60 - Step 4: Simplify right side
2,993,811.60x = 6,638,270,969,458.44 - Step 5: Solve for x
x = 6,638,270,969,458.44/2,993,811.60 - Step 6: Final answer
x = 2,217,330.90
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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.