Finding the Fourth Proportional to 647,121.70, 970,682.55 and 332,193.70
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Solution
The fourth proportional to 647,121.70, 970,682.55 and 332,193.70 is: 498,290.55
Step by Step Solution
- Step 1: Write the proportion equation
647,121.70 : 970,682.55 = 332,193.70 : x - Step 2: Convert to fraction form
647,121.70/970,682.55 = 332,193.70/x - Step 3: Cross multiply
647,121.70x = 970,682.55 × 332,193.70 - Step 4: Simplify right side
647,121.70x = 322,454,627,809.94 - Step 5: Solve for x
x = 322,454,627,809.94/647,121.70 - Step 6: Final answer
x = 498,290.55
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Double scale
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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.