Finding the Fourth Proportional to 994,276.80, 1,491,415.20 and 363,643.20
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Solution
The fourth proportional to 994,276.80, 1,491,415.20 and 363,643.20 is: 545,464.80
Step by Step Solution
- Step 1: Write the proportion equation
994,276.80 : 1,491,415.20 = 363,643.20 : x - Step 2: Convert to fraction form
994,276.80/1,491,415.20 = 363,643.20/x - Step 3: Cross multiply
994,276.80x = 1,491,415.20 × 363,643.20 - Step 4: Simplify right side
994,276.80x = 542,342,995,856.64 - Step 5: Solve for x
x = 542,342,995,856.64/994,276.80 - Step 6: Final answer
x = 545,464.80
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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.