Finding the Fourth Proportional to 739,121.12, 1,019,620.46 and 477,386.42
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Solution
The fourth proportional to 739,121.12, 1,019,620.46 and 477,386.42 is: 658,556.42
Step by Step Solution
- Step 1: Write the proportion equation
739,121.12 : 1,019,620.46 = 477,386.42 : x - Step 2: Convert to fraction form
739,121.12/1,019,620.46 = 477,386.42/x - Step 3: Cross multiply
739,121.12x = 1,019,620.46 × 477,386.42 - Step 4: Simplify right side
739,121.12x = 486,752,961,158.15 - Step 5: Solve for x
x = 486,752,961,158.15/739,121.12 - Step 6: Final answer
x = 658,556.42
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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.