Finding the Fourth Proportional to 811,839.62, 1,120,327.60 and 449,241.39
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Solution
The fourth proportional to 811,839.62, 1,120,327.60 and 449,241.39 is: 619,946.99
Step by Step Solution
- Step 1: Write the proportion equation
811,839.62 : 1,120,327.60 = 449,241.39 : x - Step 2: Convert to fraction form
811,839.62/1,120,327.60 = 449,241.39/x - Step 3: Cross multiply
811,839.62x = 1,120,327.60 × 449,241.39 - Step 4: Simplify right side
811,839.62x = 503,297,528,279.36 - Step 5: Solve for x
x = 503,297,528,279.36/811,839.62 - Step 6: Final answer
x = 619,946.99
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1.5x scale
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.