Finding the Fourth Proportional to 712,611.63, 983,391.89 and 385,921.98
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Solution
The fourth proportional to 712,611.63, 983,391.89 and 385,921.98 is: 532,565.75
Step by Step Solution
- Step 1: Write the proportion equation
712,611.63 : 983,391.89 = 385,921.98 : x - Step 2: Convert to fraction form
712,611.63/983,391.89 = 385,921.98/x - Step 3: Cross multiply
712,611.63x = 983,391.89 × 385,921.98 - Step 4: Simplify right side
712,611.63x = 379,512,543,375.13 - Step 5: Solve for x
x = 379,512,543,375.13/712,611.63 - Step 6: Final answer
x = 532,565.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.