Finding the Fourth Proportional to 814,489.20, 1,123,941.60 and 451,912.08
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Solution
The fourth proportional to 814,489.20, 1,123,941.60 and 451,912.08 is: 623,608.99
Step by Step Solution
- Step 1: Write the proportion equation
814,489.20 : 1,123,941.60 = 451,912.08 : x - Step 2: Convert to fraction form
814,489.20/1,123,941.60 = 451,912.08/x - Step 3: Cross multiply
814,489.20x = 1,123,941.60 × 451,912.08 - Step 4: Simplify right side
814,489.20x = 507,922,786,254.53 - Step 5: Solve for x
x = 507,922,786,254.53/814,489.20 - Step 6: Final answer
x = 623,608.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.