Finding the Fourth Proportional to 913,556.14, 1,259,869.79 and 784,450.70
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Solution
The fourth proportional to 913,556.14, 1,259,869.79 and 784,450.70 is: 1,081,822.67
Step by Step Solution
- Step 1: Write the proportion equation
913,556.14 : 1,259,869.79 = 784,450.70 : x - Step 2: Convert to fraction form
913,556.14/1,259,869.79 = 784,450.70/x - Step 3: Cross multiply
913,556.14x = 1,259,869.79 × 784,450.70 - Step 4: Simplify right side
913,556.14x = 988,305,738,674.35 - Step 5: Solve for x
x = 988,305,738,674.35/913,556.14 - Step 6: Final answer
x = 1,081,822.67
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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.