Finding the Fourth Proportional to 611,528.40, 844,308.88 and 397,279.08
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Solution
The fourth proportional to 611,528.40, 844,308.88 and 397,279.08 is: 548,504.79
Step by Step Solution
- Step 1: Write the proportion equation
611,528.40 : 844,308.88 = 397,279.08 : x - Step 2: Convert to fraction form
611,528.40/844,308.88 = 397,279.08/x - Step 3: Cross multiply
611,528.40x = 844,308.88 × 397,279.08 - Step 4: Simplify right side
611,528.40x = 335,426,255,082.23 - Step 5: Solve for x
x = 335,426,255,082.23/611,528.40 - Step 6: Final answer
x = 548,504.79
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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.