Finding the Fourth Proportional to 739,122.12, 1,019,621.84 and 477,387.42
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Solution
The fourth proportional to 739,122.12, 1,019,621.84 and 477,387.42 is: 658,557.80
Step by Step Solution
- Step 1: Write the proportion equation
739,122.12 : 1,019,621.84 = 477,387.42 : x - Step 2: Convert to fraction form
739,122.12/1,019,621.84 = 477,387.42/x - Step 3: Cross multiply
739,122.12x = 1,019,621.84 × 477,387.42 - Step 4: Simplify right side
739,122.12x = 486,754,639,573.25 - Step 5: Solve for x
x = 486,754,639,573.25/739,122.12 - Step 6: Final answer
x = 658,557.80
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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.