Finding the Fourth Proportional to 721,855.26, 1,084,745.75 and 385,133.81
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Solution
The fourth proportional to 721,855.26, 1,084,745.75 and 385,133.81 is: 578,747.96
Step by Step Solution
- Step 1: Write the proportion equation
721,855.26 : 1,084,745.75 = 385,133.81 : x - Step 2: Convert to fraction form
721,855.26/1,084,745.75 = 385,133.81/x - Step 3: Cross multiply
721,855.26x = 1,084,745.75 × 385,133.81 - Step 4: Simplify right side
721,855.26x = 417,772,256,229.41 - Step 5: Solve for x
x = 417,772,256,229.41/721,855.26 - Step 6: Final answer
x = 578,747.96
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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.