Finding the Fourth Proportional to 1,479,515.66, 2,043,141.72 and 1,398,912.62
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Solution
The fourth proportional to 1,479,515.66, 2,043,141.72 and 1,398,912.62 is: 1,931,832.70
Step by Step Solution
- Step 1: Write the proportion equation
1,479,515.66 : 2,043,141.72 = 1,398,912.62 : x - Step 2: Convert to fraction form
1,479,515.66/2,043,141.72 = 1,398,912.62/x - Step 3: Cross multiply
1,479,515.66x = 2,043,141.72 × 1,398,912.62 - Step 4: Simplify right side
1,479,515.66x = 2,858,176,729,561.94 - Step 5: Solve for x
x = 2,858,176,729,561.94/1,479,515.66 - Step 6: Final answer
x = 1,931,832.70
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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.