Finding the Fourth Proportional to 1,213,641.87, 1,820,147.56 and 360,512.99
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Solution
The fourth proportional to 1,213,641.87, 1,820,147.56 and 360,512.99 is: 540,675.84
Step by Step Solution
- Step 1: Write the proportion equation
1,213,641.87 : 1,820,147.56 = 360,512.99 : x - Step 2: Convert to fraction form
1,213,641.87/1,820,147.56 = 360,512.99/x - Step 3: Cross multiply
1,213,641.87x = 1,820,147.56 × 360,512.99 - Step 4: Simplify right side
1,213,641.87x = 656,186,839,096.81 - Step 5: Solve for x
x = 656,186,839,096.81/1,213,641.87 - Step 6: Final answer
x = 540,675.84
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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.