Finding the Fourth Proportional to 861,236.96, 1,291,017.29 and 411,841.26
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Solution
The fourth proportional to 861,236.96, 1,291,017.29 and 411,841.26 is: 617,361.09
Step by Step Solution
- Step 1: Write the proportion equation
861,236.96 : 1,291,017.29 = 411,841.26 : x - Step 2: Convert to fraction form
861,236.96/1,291,017.29 = 411,841.26/x - Step 3: Cross multiply
861,236.96x = 1,291,017.29 × 411,841.26 - Step 4: Simplify right side
861,236.96x = 531,694,185,336.18 - Step 5: Solve for x
x = 531,694,185,336.18/861,236.96 - Step 6: Final answer
x = 617,361.09
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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.