Finding the Fourth Proportional to 1,419,138.20, 2,129,330.58 and 745,062.92
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Solution
The fourth proportional to 1,419,138.20, 2,129,330.58 and 745,062.92 is: 1,117,921.61
Step by Step Solution
- Step 1: Write the proportion equation
1,419,138.20 : 2,129,330.58 = 745,062.92 : x - Step 2: Convert to fraction form
1,419,138.20/2,129,330.58 = 745,062.92/x - Step 3: Cross multiply
1,419,138.20x = 2,129,330.58 × 745,062.92 - Step 4: Simplify right side
1,419,138.20x = 1,586,485,259,580.09 - Step 5: Solve for x
x = 1,586,485,259,580.09/1,419,138.20 - Step 6: Final answer
x = 1,117,921.61
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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.