Finding the Fourth Proportional to 691,475.88, 1,036,535.64 and 331,544.70
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Solution
The fourth proportional to 691,475.88, 1,036,535.64 and 331,544.70 is: 496,991.88
Step by Step Solution
- Step 1: Write the proportion equation
691,475.88 : 1,036,535.64 = 331,544.70 : x - Step 2: Convert to fraction form
691,475.88/1,036,535.64 = 331,544.70/x - Step 3: Cross multiply
691,475.88x = 1,036,535.64 × 331,544.70 - Step 4: Simplify right side
691,475.88x = 343,657,897,803.11 - Step 5: Solve for x
x = 343,657,897,803.11/691,475.88 - Step 6: Final answer
x = 496,991.88
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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.