Finding the Fourth Proportional to 3,991,812.60, 5,987,718.90 and 1,467,139.80
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Solution
The fourth proportional to 3,991,812.60, 5,987,718.90 and 1,467,139.80 is: 2,200,709.70
Step by Step Solution
- Step 1: Write the proportion equation
3,991,812.60 : 5,987,718.90 = 1,467,139.80 : x - Step 2: Convert to fraction form
3,991,812.60/5,987,718.90 = 1,467,139.80/x - Step 3: Cross multiply
3,991,812.60x = 5,987,718.90 × 1,467,139.80 - Step 4: Simplify right side
3,991,812.60x = 8,784,820,709,402.22 - Step 5: Solve for x
x = 8,784,820,709,402.22/3,991,812.60 - Step 6: Final answer
x = 2,200,709.70
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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.