Finding the Fourth Proportional to 1,309,341.87, 1,962,221.22 and 989,230.68
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Solution
The fourth proportional to 1,309,341.87, 1,962,221.22 and 989,230.68 is: 1,482,492.45
Step by Step Solution
- Step 1: Write the proportion equation
1,309,341.87 : 1,962,221.22 = 989,230.68 : x - Step 2: Convert to fraction form
1,309,341.87/1,962,221.22 = 989,230.68/x - Step 3: Cross multiply
1,309,341.87x = 1,962,221.22 × 989,230.68 - Step 4: Simplify right side
1,309,341.87x = 1,941,089,431,771.03 - Step 5: Solve for x
x = 1,941,089,431,771.03/1,309,341.87 - Step 6: Final answer
x = 1,482,492.45
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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.