Finding the Fourth Proportional to 1,989,172.82, 2,742,886.26 and 1,343,471.99
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Solution
The fourth proportional to 1,989,172.82, 2,742,886.26 and 1,343,471.99 is: 1,852,524.24
Step by Step Solution
- Step 1: Write the proportion equation
1,989,172.82 : 2,742,886.26 = 1,343,471.99 : x - Step 2: Convert to fraction form
1,989,172.82/2,742,886.26 = 1,343,471.99/x - Step 3: Cross multiply
1,989,172.82x = 2,742,886.26 × 1,343,471.99 - Step 4: Simplify right side
1,989,172.82x = 3,684,990,862,065.86 - Step 5: Solve for x
x = 3,684,990,862,065.86/1,989,172.82 - Step 6: Final answer
x = 1,852,524.24
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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.