Finding the Fourth Proportional to 548,705.63, 757,243.18 and 306,973.79
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Solution
The fourth proportional to 548,705.63, 757,243.18 and 306,973.79 is: 423,640.28
Step by Step Solution
- Step 1: Write the proportion equation
548,705.63 : 757,243.18 = 306,973.79 : x - Step 2: Convert to fraction form
548,705.63/757,243.18 = 306,973.79/x - Step 3: Cross multiply
548,705.63x = 757,243.18 × 306,973.79 - Step 4: Simplify right side
548,705.63x = 232,453,808,916.25 - Step 5: Solve for x
x = 232,453,808,916.25/548,705.63 - Step 6: Final answer
x = 423,640.28
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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.