Finding the Fourth Proportional to 411,678.60, 617,906.70 and 254,214.60
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Solution
The fourth proportional to 411,678.60, 617,906.70 and 254,214.60 is: 381,561.99
Step by Step Solution
- Step 1: Write the proportion equation
411,678.60 : 617,906.70 = 254,214.60 : x - Step 2: Convert to fraction form
411,678.60/617,906.70 = 254,214.60/x - Step 3: Cross multiply
411,678.60x = 617,906.70 × 254,214.60 - Step 4: Simplify right side
411,678.60x = 157,080,904,577.82 - Step 5: Solve for x
x = 157,080,904,577.82/411,678.60 - Step 6: Final answer
x = 381,561.99
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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.