Finding the Fourth Proportional to 3,934,621.09, 5,902,142.24 and 1,239,156.24
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Solution
The fourth proportional to 3,934,621.09, 5,902,142.24 and 1,239,156.24 is: 1,858,800.69
Step by Step Solution
- Step 1: Write the proportion equation
3,934,621.09 : 5,902,142.24 = 1,239,156.24 : x - Step 2: Convert to fraction form
3,934,621.09/5,902,142.24 = 1,239,156.24/x - Step 3: Cross multiply
3,934,621.09x = 5,902,142.24 × 1,239,156.24 - Step 4: Simplify right side
3,934,621.09x = 7,313,676,386,063.58 - Step 5: Solve for x
x = 7,313,676,386,063.58/3,934,621.09 - Step 6: Final answer
x = 1,858,800.69
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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.