Finding the Fourth Proportional to 640,193.22, 960,892.74 and 324,876.42
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Solution
The fourth proportional to 640,193.22, 960,892.74 and 324,876.42 is: 487,620.59
Step by Step Solution
- Step 1: Write the proportion equation
640,193.22 : 960,892.74 = 324,876.42 : x - Step 2: Convert to fraction form
640,193.22/960,892.74 = 324,876.42/x - Step 3: Cross multiply
640,193.22x = 960,892.74 × 324,876.42 - Step 4: Simplify right side
640,193.22x = 312,171,393,375.19 - Step 5: Solve for x
x = 312,171,393,375.19/640,193.22 - Step 6: Final answer
x = 487,620.59
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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.