Finding the Fourth Proportional to 813,213.44, 1,122,241.18 and 450,643.35
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Solution
The fourth proportional to 813,213.44, 1,122,241.18 and 450,643.35 is: 621,891.50
Step by Step Solution
- Step 1: Write the proportion equation
813,213.44 : 1,122,241.18 = 450,643.35 : x - Step 2: Convert to fraction form
813,213.44/1,122,241.18 = 450,643.35/x - Step 3: Cross multiply
813,213.44x = 1,122,241.18 × 450,643.35 - Step 4: Simplify right side
813,213.44x = 505,730,524,863.15 - Step 5: Solve for x
x = 505,730,524,863.15/813,213.44 - Step 6: Final answer
x = 621,891.50
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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.