Finding the Fourth Proportional to 819,872.96, 1,230,183.10 and 420,793.98
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Solution
The fourth proportional to 819,872.96, 1,230,183.10 and 420,793.98 is: 631,382.75
Step by Step Solution
- Step 1: Write the proportion equation
819,872.96 : 1,230,183.10 = 420,793.98 : x - Step 2: Convert to fraction form
819,872.96/1,230,183.10 = 420,793.98/x - Step 3: Cross multiply
819,872.96x = 1,230,183.10 × 420,793.98 - Step 4: Simplify right side
819,872.96x = 517,653,642,777.74 - Step 5: Solve for x
x = 517,653,642,777.74/819,872.96 - Step 6: Final answer
x = 631,382.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.