Finding the Fourth Proportional to 786,407.68, 1,179,612.24 and 195,431.68
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Solution
The fourth proportional to 786,407.68, 1,179,612.24 and 195,431.68 is: 293,147.70
Step by Step Solution
- Step 1: Write the proportion equation
786,407.68 : 1,179,612.24 = 195,431.68 : x - Step 2: Convert to fraction form
786,407.68/1,179,612.24 = 195,431.68/x - Step 3: Cross multiply
786,407.68x = 1,179,612.24 × 195,431.68 - Step 4: Simplify right side
786,407.68x = 230,533,601,811.76 - Step 5: Solve for x
x = 230,533,601,811.76/786,407.68 - Step 6: Final answer
x = 293,147.70
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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.