Finding the Fourth Proportional to 931,977.27, 1,286,471.84 and 818,464.82
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Solution
The fourth proportional to 931,977.27, 1,286,471.84 and 818,464.82 is: 1,129,782.85
Step by Step Solution
- Step 1: Write the proportion equation
931,977.27 : 1,286,471.84 = 818,464.82 : x - Step 2: Convert to fraction form
931,977.27/1,286,471.84 = 818,464.82/x - Step 3: Cross multiply
931,977.27x = 1,286,471.84 × 818,464.82 - Step 4: Simplify right side
931,977.27x = 1,052,931,932,435.99 - Step 5: Solve for x
x = 1,052,931,932,435.99/931,977.27 - Step 6: Final answer
x = 1,129,782.85
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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.