Finding the Fourth Proportional to 756,688.20, 1,044,236.84 and 417,168.60
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Solution
The fourth proportional to 756,688.20, 1,044,236.84 and 417,168.60 is: 575,696.60
Step by Step Solution
- Step 1: Write the proportion equation
756,688.20 : 1,044,236.84 = 417,168.60 : x - Step 2: Convert to fraction form
756,688.20/1,044,236.84 = 417,168.60/x - Step 3: Cross multiply
756,688.20x = 1,044,236.84 × 417,168.60 - Step 4: Simplify right side
756,688.20x = 435,622,820,611.22 - Step 5: Solve for x
x = 435,622,820,611.22/756,688.20 - Step 6: Final answer
x = 575,696.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.