Finding the Fourth Proportional to 858,552.80, 1,287,310.80 and 385,149.92
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Solution
The fourth proportional to 858,552.80, 1,287,310.80 and 385,149.92 is: 577,492.32
Step by Step Solution
- Step 1: Write the proportion equation
858,552.80 : 1,287,310.80 = 385,149.92 : x - Step 2: Convert to fraction form
858,552.80/1,287,310.80 = 385,149.92/x - Step 3: Cross multiply
858,552.80x = 1,287,310.80 × 385,149.92 - Step 4: Simplify right side
858,552.80x = 495,807,651,635.14 - Step 5: Solve for x
x = 495,807,651,635.14/858,552.80 - Step 6: Final answer
x = 577,492.32
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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.