Finding the Fourth Proportional to 777,883.25, 1,167,021.68 and 216,917.81
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Solution
The fourth proportional to 777,883.25, 1,167,021.68 and 216,917.81 is: 325,431.60
Step by Step Solution
- Step 1: Write the proportion equation
777,883.25 : 1,167,021.68 = 216,917.81 : x - Step 2: Convert to fraction form
777,883.25/1,167,021.68 = 216,917.81/x - Step 3: Cross multiply
777,883.25x = 1,167,021.68 × 216,917.81 - Step 4: Simplify right side
777,883.25x = 253,147,787,048.12 - Step 5: Solve for x
x = 253,147,787,048.12/777,883.25 - Step 6: Final answer
x = 325,431.60
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1.5x scale
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.