Finding the Fourth Proportional to 819,183.88, 1,228,250.94 and 398,230.12
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Solution
The fourth proportional to 819,183.88, 1,228,250.94 and 398,230.12 is: 597,090.02
Step by Step Solution
- Step 1: Write the proportion equation
819,183.88 : 1,228,250.94 = 398,230.12 : x - Step 2: Convert to fraction form
819,183.88/1,228,250.94 = 398,230.12/x - Step 3: Cross multiply
819,183.88x = 1,228,250.94 × 398,230.12 - Step 4: Simplify right side
819,183.88x = 489,126,519,226.31 - Step 5: Solve for x
x = 489,126,519,226.31/819,183.88 - Step 6: Final answer
x = 597,090.02
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1.5x scale
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.