Finding the Fourth Proportional to 847,211.70, 1,270,817.55 and 729,113.70
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Solution
The fourth proportional to 847,211.70, 1,270,817.55 and 729,113.70 is: 1,093,670.55
Step by Step Solution
- Step 1: Write the proportion equation
847,211.70 : 1,270,817.55 = 729,113.70 : x - Step 2: Convert to fraction form
847,211.70/1,270,817.55 = 729,113.70/x - Step 3: Cross multiply
847,211.70x = 1,270,817.55 × 729,113.70 - Step 4: Simplify right side
847,211.70x = 926,570,485,905.44 - Step 5: Solve for x
x = 926,570,485,905.44/847,211.70 - Step 6: Final answer
x = 1,093,670.55
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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.