Finding the Fourth Proportional to 1,082,988.36, 1,493,620.56 and 811,703.16
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Solution
The fourth proportional to 1,082,988.36, 1,493,620.56 and 811,703.16 is: 1,119,473.28
Step by Step Solution
- Step 1: Write the proportion equation
1,082,988.36 : 1,493,620.56 = 811,703.16 : x - Step 2: Convert to fraction form
1,082,988.36/1,493,620.56 = 811,703.16/x - Step 3: Cross multiply
1,082,988.36x = 1,493,620.56 × 811,703.16 - Step 4: Simplify right side
1,082,988.36x = 1,212,376,528,392.97 - Step 5: Solve for x
x = 1,212,376,528,392.97/1,082,988.36 - Step 6: Final answer
x = 1,119,473.28
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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.