Finding the Fourth Proportional to 1,419,965.17, 2,128,370.07 and 1,081,891.27
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Solution
The fourth proportional to 1,419,965.17, 2,128,370.07 and 1,081,891.27 is: 1,621,634.84
Step by Step Solution
- Step 1: Write the proportion equation
1,419,965.17 : 2,128,370.07 = 1,081,891.27 : x - Step 2: Convert to fraction form
1,419,965.17/2,128,370.07 = 1,081,891.27/x - Step 3: Cross multiply
1,419,965.17x = 2,128,370.07 × 1,081,891.27 - Step 4: Simplify right side
1,419,965.17x = 2,302,664,987,420.44 - Step 5: Solve for x
x = 2,302,664,987,420.44/1,419,965.17 - Step 6: Final answer
x = 1,621,634.84
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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.