Finding the Fourth Proportional to 838,582.80, 1,257,874.20 and 306,121.20
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Solution
The fourth proportional to 838,582.80, 1,257,874.20 and 306,121.20 is: 459,181.80
Step by Step Solution
- Step 1: Write the proportion equation
838,582.80 : 1,257,874.20 = 306,121.20 : x - Step 2: Convert to fraction form
838,582.80/1,257,874.20 = 306,121.20/x - Step 3: Cross multiply
838,582.80x = 1,257,874.20 × 306,121.20 - Step 4: Simplify right side
838,582.80x = 385,061,959,553.04 - Step 5: Solve for x
x = 385,061,959,553.04/838,582.80 - Step 6: Final answer
x = 459,181.80
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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.