Finding the Fourth Proportional to 1,437,809.09, 1,984,107.29 and 784,396.21
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Solution
The fourth proportional to 1,437,809.09, 1,984,107.29 and 784,396.21 is: 1,082,428.99
Step by Step Solution
- Step 1: Write the proportion equation
1,437,809.09 : 1,984,107.29 = 784,396.21 : x - Step 2: Convert to fraction form
1,437,809.09/1,984,107.29 = 784,396.21/x - Step 3: Cross multiply
1,437,809.09x = 1,984,107.29 × 784,396.21 - Step 4: Simplify right side
1,437,809.09x = 1,556,326,238,509.37 - Step 5: Solve for x
x = 1,556,326,238,509.37/1,437,809.09 - Step 6: Final answer
x = 1,082,428.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.