Finding the Fourth Proportional to 324,369.40, 486,554.10 and 305,998.60
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Solution
The fourth proportional to 324,369.40, 486,554.10 and 305,998.60 is: 458,997.90
Step by Step Solution
- Step 1: Write the proportion equation
324,369.40 : 486,554.10 = 305,998.60 : x - Step 2: Convert to fraction form
324,369.40/486,554.10 = 305,998.60/x - Step 3: Cross multiply
324,369.40x = 486,554.10 × 305,998.60 - Step 4: Simplify right side
324,369.40x = 148,884,873,424.26 - Step 5: Solve for x
x = 148,884,873,424.26/324,369.40 - Step 6: Final answer
x = 458,997.90
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Similar ratio
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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.