Finding the Fourth Proportional to 405,324.12, 607,934.34 and 168,622.68
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Solution
The fourth proportional to 405,324.12, 607,934.34 and 168,622.68 is: 252,912.45
Step by Step Solution
- Step 1: Write the proportion equation
405,324.12 : 607,934.34 = 168,622.68 : x - Step 2: Convert to fraction form
405,324.12/607,934.34 = 168,622.68/x - Step 3: Cross multiply
405,324.12x = 607,934.34 × 168,622.68 - Step 4: Simplify right side
405,324.12x = 102,511,517,674.83 - Step 5: Solve for x
x = 102,511,517,674.83/405,324.12 - Step 6: Final answer
x = 252,912.45
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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.