Finding the Fourth Proportional to 449,639.16, 674,791.36 and 212,982.38
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Solution
The fourth proportional to 449,639.16, 674,791.36 and 212,982.38 is: 319,631.12
Step by Step Solution
- Step 1: Write the proportion equation
449,639.16 : 674,791.36 = 212,982.38 : x - Step 2: Convert to fraction form
449,639.16/674,791.36 = 212,982.38/x - Step 3: Cross multiply
449,639.16x = 674,791.36 × 212,982.38 - Step 4: Simplify right side
449,639.16x = 143,718,669,856.24 - Step 5: Solve for x
x = 143,718,669,856.24/449,639.16 - Step 6: Final answer
x = 319,631.12
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.