Finding the Fourth Proportional to 1,995,806.72, 2,753,431.44 and 1,230,531.68
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Solution
The fourth proportional to 1,995,806.72, 2,753,431.44 and 1,230,531.68 is: 1,697,651.67
Step by Step Solution
- Step 1: Write the proportion equation
1,995,806.72 : 2,753,431.44 = 1,230,531.68 : x - Step 2: Convert to fraction form
1,995,806.72/2,753,431.44 = 1,230,531.68/x - Step 3: Cross multiply
1,995,806.72x = 2,753,431.44 × 1,230,531.68 - Step 4: Simplify right side
1,995,806.72x = 3,388,184,615,628.02 - Step 5: Solve for x
x = 3,388,184,615,628.02/1,995,806.72 - Step 6: Final answer
x = 1,697,651.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.