Finding the Fourth Proportional to 524,138.40, 786,207.60 and 325,720.80
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Solution
The fourth proportional to 524,138.40, 786,207.60 and 325,720.80 is: 488,581.20
Step by Step Solution
- Step 1: Write the proportion equation
524,138.40 : 786,207.60 = 325,720.80 : x - Step 2: Convert to fraction form
524,138.40/786,207.60 = 325,720.80/x - Step 3: Cross multiply
524,138.40x = 786,207.60 × 325,720.80 - Step 4: Simplify right side
524,138.40x = 256,084,168,438.08 - Step 5: Solve for x
x = 256,084,168,438.08/524,138.40 - Step 6: Final answer
x = 488,581.20
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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.