Finding the Fourth Proportional to 392,892.96, 588,944.88 and 126,457.68
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Solution
The fourth proportional to 392,892.96, 588,944.88 and 126,457.68 is: 189,559.53
Step by Step Solution
- Step 1: Write the proportion equation
392,892.96 : 588,944.88 = 126,457.68 : x - Step 2: Convert to fraction form
392,892.96/588,944.88 = 126,457.68/x - Step 3: Cross multiply
392,892.96x = 588,944.88 × 126,457.68 - Step 4: Simplify right side
392,892.96x = 74,476,603,172.68 - Step 5: Solve for x
x = 74,476,603,172.68/392,892.96 - Step 6: Final answer
x = 189,559.53
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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.