Finding the Fourth Proportional to 831,613.95, 1,247,574.78 and 263,138.13
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Solution
The fourth proportional to 831,613.95, 1,247,574.78 and 263,138.13 is: 394,755.88
Step by Step Solution
- Step 1: Write the proportion equation
831,613.95 : 1,247,574.78 = 263,138.13 : x - Step 2: Convert to fraction form
831,613.95/1,247,574.78 = 263,138.13/x - Step 3: Cross multiply
831,613.95x = 1,247,574.78 × 263,138.13 - Step 4: Simplify right side
831,613.95x = 328,284,494,644.36 - Step 5: Solve for x
x = 328,284,494,644.36/831,613.95 - Step 6: Final answer
x = 394,755.88
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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.