Finding the Fourth Proportional to 1,286,725.67, 1,930,102.35 and 388,175.18
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Solution
The fourth proportional to 1,286,725.67, 1,930,102.35 and 388,175.18 is: 582,266.95
Step by Step Solution
- Step 1: Write the proportion equation
1,286,725.67 : 1,930,102.35 = 388,175.18 : x - Step 2: Convert to fraction form
1,286,725.67/1,930,102.35 = 388,175.18/x - Step 3: Cross multiply
1,286,725.67x = 1,930,102.35 × 388,175.18 - Step 4: Simplify right side
1,286,725.67x = 749,217,825,188.80 - Step 5: Solve for x
x = 749,217,825,188.80/1,286,725.67 - Step 6: Final answer
x = 582,266.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.