Finding the Fourth Proportional to 416,400.76, 623,655.18 and 325,879.48
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Solution
The fourth proportional to 416,400.76, 623,655.18 and 325,879.48 is: 488,078.90
Step by Step Solution
- Step 1: Write the proportion equation
416,400.76 : 623,655.18 = 325,879.48 : x - Step 2: Convert to fraction form
416,400.76/623,655.18 = 325,879.48/x - Step 3: Cross multiply
416,400.76x = 623,655.18 × 325,879.48 - Step 4: Simplify right side
416,400.76x = 203,236,425,757.71 - Step 5: Solve for x
x = 203,236,425,757.71/416,400.76 - Step 6: Final answer
x = 488,078.90
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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.