Finding the Fourth Proportional to 448,639.32, 671,378.16 and 280,238.96
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Solution
The fourth proportional to 448,639.32, 671,378.16 and 280,238.96 is: 419,370.99
Step by Step Solution
- Step 1: Write the proportion equation
448,639.32 : 671,378.16 = 280,238.96 : x - Step 2: Convert to fraction form
448,639.32/671,378.16 = 280,238.96/x - Step 3: Cross multiply
448,639.32x = 671,378.16 × 280,238.96 - Step 4: Simplify right side
448,639.32x = 188,146,313,968.22 - Step 5: Solve for x
x = 188,146,313,968.22/448,639.32 - Step 6: Final answer
x = 419,370.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.