Finding the Fourth Proportional to 853,467.75, 1,177,800.63 and 471,471.75
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Solution
The fourth proportional to 853,467.75, 1,177,800.63 and 471,471.75 is: 650,639.38
Step by Step Solution
- Step 1: Write the proportion equation
853,467.75 : 1,177,800.63 = 471,471.75 : x - Step 2: Convert to fraction form
853,467.75/1,177,800.63 = 471,471.75/x - Step 3: Cross multiply
853,467.75x = 1,177,800.63 × 471,471.75 - Step 4: Simplify right side
853,467.75x = 555,299,724,177.20 - Step 5: Solve for x
x = 555,299,724,177.20/853,467.75 - Step 6: Final answer
x = 650,639.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.