Finding the Fourth Proportional to 869,115.20, 1,303,672.80 and 659,163.20
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Solution
The fourth proportional to 869,115.20, 1,303,672.80 and 659,163.20 is: 988,744.80
Step by Step Solution
- Step 1: Write the proportion equation
869,115.20 : 1,303,672.80 = 659,163.20 : x - Step 2: Convert to fraction form
869,115.20/1,303,672.80 = 659,163.20/x - Step 3: Cross multiply
869,115.20x = 1,303,672.80 × 659,163.20 - Step 4: Simplify right side
869,115.20x = 859,333,134,600.96 - Step 5: Solve for x
x = 859,333,134,600.96/869,115.20 - Step 6: Final answer
x = 988,744.80
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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.