Finding the Fourth Proportional to 405,974.94, 608,790.74 and 121,705.94
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Solution
The fourth proportional to 405,974.94, 608,790.74 and 121,705.94 is: 182,507.45
Step by Step Solution
- Step 1: Write the proportion equation
405,974.94 : 608,790.74 = 121,705.94 : x - Step 2: Convert to fraction form
405,974.94/608,790.74 = 121,705.94/x - Step 3: Cross multiply
405,974.94x = 608,790.74 × 121,705.94 - Step 4: Simplify right side
405,974.94x = 74,093,450,188.44 - Step 5: Solve for x
x = 74,093,450,188.44/405,974.94 - Step 6: Final answer
x = 182,507.45
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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.