Finding the Fourth Proportional to 642,629.70, 963,944.55 and 327,701.70
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Solution
The fourth proportional to 642,629.70, 963,944.55 and 327,701.70 is: 491,552.55
Step by Step Solution
- Step 1: Write the proportion equation
642,629.70 : 963,944.55 = 327,701.70 : x - Step 2: Convert to fraction form
642,629.70/963,944.55 = 327,701.70/x - Step 3: Cross multiply
642,629.70x = 963,944.55 × 327,701.70 - Step 4: Simplify right side
642,629.70x = 315,886,267,740.74 - Step 5: Solve for x
x = 315,886,267,740.74/642,629.70 - Step 6: Final answer
x = 491,552.55
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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.