Finding the Fourth Proportional to 1,007,980.99, 1,511,943.84 and 439,361.74
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Solution
The fourth proportional to 1,007,980.99, 1,511,943.84 and 439,361.74 is: 659,030.56
Step by Step Solution
- Step 1: Write the proportion equation
1,007,980.99 : 1,511,943.84 = 439,361.74 : x - Step 2: Convert to fraction form
1,007,980.99/1,511,943.84 = 439,361.74/x - Step 3: Cross multiply
1,007,980.99x = 1,511,943.84 × 439,361.74 - Step 4: Simplify right side
1,007,980.99x = 664,290,276,324.68 - Step 5: Solve for x
x = 664,290,276,324.68/1,007,980.99 - Step 6: Final answer
x = 659,030.56
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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.