Finding the Fourth Proportional to 659,129.70, 988,694.55 and 659,129.70
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Solution
The fourth proportional to 659,129.70, 988,694.55 and 659,129.70 is: 988,694.55
Step by Step Solution
- Step 1: Write the proportion equation
659,129.70 : 988,694.55 = 659,129.70 : x - Step 2: Convert to fraction form
659,129.70/988,694.55 = 659,129.70/x - Step 3: Cross multiply
659,129.70x = 988,694.55 × 659,129.70 - Step 4: Simplify right side
659,129.70x = 651,677,942,133.14 - Step 5: Solve for x
x = 651,677,942,133.14/659,129.70 - Step 6: Final answer
x = 988,694.55
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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.