Finding the Fourth Proportional to 512,145.43, 769,214.04 and 417,445.09
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Solution
The fourth proportional to 512,145.43, 769,214.04 and 417,445.09 is: 626,979.38
Step by Step Solution
- Step 1: Write the proportion equation
512,145.43 : 769,214.04 = 417,445.09 : x - Step 2: Convert to fraction form
512,145.43/769,214.04 = 417,445.09/x - Step 3: Cross multiply
512,145.43x = 769,214.04 × 417,445.09 - Step 4: Simplify right side
512,145.43x = 321,104,624,157.06 - Step 5: Solve for x
x = 321,104,624,157.06/512,145.43 - Step 6: Final answer
x = 626,979.38
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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.