Finding the Fourth Proportional to 804,738.30, 1,207,107.45 and 272,276.70
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Solution
The fourth proportional to 804,738.30, 1,207,107.45 and 272,276.70 is: 408,415.05
Step by Step Solution
- Step 1: Write the proportion equation
804,738.30 : 1,207,107.45 = 272,276.70 : x - Step 2: Convert to fraction form
804,738.30/1,207,107.45 = 272,276.70/x - Step 3: Cross multiply
804,738.30x = 1,207,107.45 × 272,276.70 - Step 4: Simplify right side
804,738.30x = 328,667,233,031.42 - Step 5: Solve for x
x = 328,667,233,031.42/804,738.30 - Step 6: Final answer
x = 408,415.05
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Similar ratio
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1.5x scale
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.