Finding the Fourth Proportional to 589,435.26, 813,420.64 and 321,163.26
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Solution
The fourth proportional to 589,435.26, 813,420.64 and 321,163.26 is: 443,205.29
Step by Step Solution
- Step 1: Write the proportion equation
589,435.26 : 813,420.64 = 321,163.26 : x - Step 2: Convert to fraction form
589,435.26/813,420.64 = 321,163.26/x - Step 3: Cross multiply
589,435.26x = 813,420.64 × 321,163.26 - Step 4: Simplify right side
589,435.26x = 261,240,824,493.69 - Step 5: Solve for x
x = 261,240,824,493.69/589,435.26 - Step 6: Final answer
x = 443,205.29
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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.