Finding the Fourth Proportional to 548,639.51, 757,123.64 and 306,926.12
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Solution
The fourth proportional to 548,639.51, 757,123.64 and 306,926.12 is: 423,558.67
Step by Step Solution
- Step 1: Write the proportion equation
548,639.51 : 757,123.64 = 306,926.12 : x - Step 2: Convert to fraction form
548,639.51/757,123.64 = 306,926.12/x - Step 3: Cross multiply
548,639.51x = 757,123.64 × 306,926.12 - Step 4: Simplify right side
548,639.51x = 232,381,019,650.85 - Step 5: Solve for x
x = 232,381,019,650.85/548,639.51 - Step 6: Final answer
x = 423,558.67
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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.