Finding the Fourth Proportional to 831,350.70, 1,245,276.45 and 691,382.70
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Solution
The fourth proportional to 831,350.70, 1,245,276.45 and 691,382.70 is: 1,035,619.02
Step by Step Solution
- Step 1: Write the proportion equation
831,350.70 : 1,245,276.45 = 691,382.70 : x - Step 2: Convert to fraction form
831,350.70/1,245,276.45 = 691,382.70/x - Step 3: Cross multiply
831,350.70x = 1,245,276.45 × 691,382.70 - Step 4: Simplify right side
831,350.70x = 860,962,594,247.42 - Step 5: Solve for x
x = 860,962,594,247.42/831,350.70 - Step 6: Final answer
x = 1,035,619.02
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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.