Finding the Fourth Proportional to 1,512,135.40, 2,268,859.20 and 764,181.40
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Solution
The fourth proportional to 1,512,135.40, 2,268,859.20 and 764,181.40 is: 1,146,603.67
Step by Step Solution
- Step 1: Write the proportion equation
1,512,135.40 : 2,268,859.20 = 764,181.40 : x - Step 2: Convert to fraction form
1,512,135.40/2,268,859.20 = 764,181.40/x - Step 3: Cross multiply
1,512,135.40x = 2,268,859.20 × 764,181.40 - Step 4: Simplify right side
1,512,135.40x = 1,733,819,999,858.88 - Step 5: Solve for x
x = 1,733,819,999,858.88/1,512,135.40 - Step 6: Final answer
x = 1,146,603.67
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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.