Finding the Fourth Proportional to 659,087.29, 988,630.94 and 209,806.21
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Solution
The fourth proportional to 659,087.29, 988,630.94 and 209,806.21 is: 314,709.32
Step by Step Solution
- Step 1: Write the proportion equation
659,087.29 : 988,630.94 = 209,806.21 : x - Step 2: Convert to fraction form
659,087.29/988,630.94 = 209,806.21/x - Step 3: Cross multiply
659,087.29x = 988,630.94 × 209,806.21 - Step 4: Simplify right side
659,087.29x = 207,420,910,610.14 - Step 5: Solve for x
x = 207,420,910,610.14/659,087.29 - Step 6: Final answer
x = 314,709.32
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Similar ratio
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1.5x scale
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.