Finding the Fourth Proportional to 1,286,119.10, 1,774,757.85 and 713,138.06
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Solution
The fourth proportional to 1,286,119.10, 1,774,757.85 and 713,138.06 is: 984,082.56
Step by Step Solution
- Step 1: Write the proportion equation
1,286,119.10 : 1,774,757.85 = 713,138.06 : x - Step 2: Convert to fraction form
1,286,119.10/1,774,757.85 = 713,138.06/x - Step 3: Cross multiply
1,286,119.10x = 1,774,757.85 × 713,138.06 - Step 4: Simplify right side
1,286,119.10x = 1,265,647,370,118.77 - Step 5: Solve for x
x = 1,265,647,370,118.77/1,286,119.10 - Step 6: Final answer
x = 984,082.56
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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.