Finding the Fourth Proportional to 378,213.80, 567,320.70 and 341,349.80
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Solution
The fourth proportional to 378,213.80, 567,320.70 and 341,349.80 is: 512,024.70
Step by Step Solution
- Step 1: Write the proportion equation
378,213.80 : 567,320.70 = 341,349.80 : x - Step 2: Convert to fraction form
378,213.80/567,320.70 = 341,349.80/x - Step 3: Cross multiply
378,213.80x = 567,320.70 × 341,349.80 - Step 4: Simplify right side
378,213.80x = 193,654,807,480.86 - Step 5: Solve for x
x = 193,654,807,480.86/378,213.80 - Step 6: Final answer
x = 512,024.70
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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.