Finding the Fourth Proportional to 981,728.21, 1,472,227.72 and 341,867.68
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Solution
The fourth proportional to 981,728.21, 1,472,227.72 and 341,867.68 is: 512,674.56
Step by Step Solution
- Step 1: Write the proportion equation
981,728.21 : 1,472,227.72 = 341,867.68 : x - Step 2: Convert to fraction form
981,728.21/1,472,227.72 = 341,867.68/x - Step 3: Cross multiply
981,728.21x = 1,472,227.72 × 341,867.68 - Step 4: Simplify right side
981,728.21x = 503,307,075,068.09 - Step 5: Solve for x
x = 503,307,075,068.09/981,728.21 - Step 6: Final answer
x = 512,674.56
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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.