Finding the Fourth Proportional to 484,049.10, 668,286.62 and 312,028.19
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Solution
The fourth proportional to 484,049.10, 668,286.62 and 312,028.19 is: 430,791.55
Step by Step Solution
- Step 1: Write the proportion equation
484,049.10 : 668,286.62 = 312,028.19 : x - Step 2: Convert to fraction form
484,049.10/668,286.62 = 312,028.19/x - Step 3: Cross multiply
484,049.10x = 668,286.62 × 312,028.19 - Step 4: Simplify right side
484,049.10x = 208,524,264,439.82 - Step 5: Solve for x
x = 208,524,264,439.82/484,049.10 - Step 6: Final answer
x = 430,791.55
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1.5x scale
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.