Finding the Fourth Proportional to 548,145.63, 756,446.58 and 306,441.63
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Solution
The fourth proportional to 548,145.63, 756,446.58 and 306,441.63 is: 422,892.59
Step by Step Solution
- Step 1: Write the proportion equation
548,145.63 : 756,446.58 = 306,441.63 : x - Step 2: Convert to fraction form
548,145.63/756,446.58 = 306,441.63/x - Step 3: Cross multiply
548,145.63x = 756,446.58 × 306,441.63 - Step 4: Simplify right side
548,145.63x = 231,806,722,983.13 - Step 5: Solve for x
x = 231,806,722,983.13/548,145.63 - Step 6: Final answer
x = 422,892.59
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1.5x scale
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.