Finding the Fourth Proportional to 657,107.19, 985,716.09 and 207,818.06
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Solution
The fourth proportional to 657,107.19, 985,716.09 and 207,818.06 is: 311,744.57
Step by Step Solution
- Step 1: Write the proportion equation
657,107.19 : 985,716.09 = 207,818.06 : x - Step 2: Convert to fraction form
657,107.19/985,716.09 = 207,818.06/x - Step 3: Cross multiply
657,107.19x = 985,716.09 × 207,818.06 - Step 4: Simplify right side
657,107.19x = 204,849,600,606.01 - Step 5: Solve for x
x = 204,849,600,606.01/657,107.19 - Step 6: Final answer
x = 311,744.57
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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.