Finding the Fourth Proportional to 691,412.36, 954,211.70 and 419,549.12
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Solution
The fourth proportional to 691,412.36, 954,211.70 and 419,549.12 is: 579,015.80
Step by Step Solution
- Step 1: Write the proportion equation
691,412.36 : 954,211.70 = 419,549.12 : x - Step 2: Convert to fraction form
691,412.36/954,211.70 = 419,549.12/x - Step 3: Cross multiply
691,412.36x = 954,211.70 × 419,549.12 - Step 4: Simplify right side
691,412.36x = 400,338,678,884.81 - Step 5: Solve for x
x = 400,338,678,884.81/691,412.36 - Step 6: Final answer
x = 579,015.80
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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.