Finding the Fourth Proportional to 3,418,771.20, 5,128,617.60 and 1,175,596.80
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Solution
The fourth proportional to 3,418,771.20, 5,128,617.60 and 1,175,596.80 is: 1,763,553.65
Step by Step Solution
- Step 1: Write the proportion equation
3,418,771.20 : 5,128,617.60 = 1,175,596.80 : x - Step 2: Convert to fraction form
3,418,771.20/5,128,617.60 = 1,175,596.80/x - Step 3: Cross multiply
3,418,771.20x = 5,128,617.60 × 1,175,596.80 - Step 4: Simplify right side
3,418,771.20x = 6,029,186,438,983.68 - Step 5: Solve for x
x = 6,029,186,438,983.68/3,418,771.20 - Step 6: Final answer
x = 1,763,553.65
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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.