Finding the Fourth Proportional to 2,993,354.40, 4,486,921.20 and 1,643,440.80
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Solution
The fourth proportional to 2,993,354.40, 4,486,921.20 and 1,643,440.80 is: 2,463,453.50
Step by Step Solution
- Step 1: Write the proportion equation
2,993,354.40 : 4,486,921.20 = 1,643,440.80 : x - Step 2: Convert to fraction form
2,993,354.40/4,486,921.20 = 1,643,440.80/x - Step 3: Cross multiply
2,993,354.40x = 4,486,921.20 × 1,643,440.80 - Step 4: Simplify right side
2,993,354.40x = 7,373,989,366,464.96 - Step 5: Solve for x
x = 7,373,989,366,464.96/2,993,354.40 - Step 6: Final answer
x = 2,463,453.50
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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.