Finding the Fourth Proportional to 1,381,416.12, 2,072,404.42 and 434,566.62
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Solution
The fourth proportional to 1,381,416.12, 2,072,404.42 and 434,566.62 is: 651,938.09
Step by Step Solution
- Step 1: Write the proportion equation
1,381,416.12 : 2,072,404.42 = 434,566.62 : x - Step 2: Convert to fraction form
1,381,416.12/2,072,404.42 = 434,566.62/x - Step 3: Cross multiply
1,381,416.12x = 2,072,404.42 × 434,566.62 - Step 4: Simplify right side
1,381,416.12x = 900,597,782,986.04 - Step 5: Solve for x
x = 900,597,782,986.04/1,381,416.12 - Step 6: Final answer
x = 651,938.09
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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.