Finding the Fourth Proportional to 448,705.68, 671,478.73 and 280,305.31
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Solution
The fourth proportional to 448,705.68, 671,478.73 and 280,305.31 is: 419,471.08
Step by Step Solution
- Step 1: Write the proportion equation
448,705.68 : 671,478.73 = 280,305.31 : x - Step 2: Convert to fraction form
448,705.68/671,478.73 = 280,305.31/x - Step 3: Cross multiply
448,705.68x = 671,478.73 × 280,305.31 - Step 4: Simplify right side
448,705.68x = 188,219,052,450.62 - Step 5: Solve for x
x = 188,219,052,450.62/448,705.68 - Step 6: Final answer
x = 419,471.08
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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.