Finding the Fourth Proportional to 843,305.16, 1,265,373.29 and 394,057.08
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Solution
The fourth proportional to 843,305.16, 1,265,373.29 and 394,057.08 is: 591,279.79
Step by Step Solution
- Step 1: Write the proportion equation
843,305.16 : 1,265,373.29 = 394,057.08 : x - Step 2: Convert to fraction form
843,305.16/1,265,373.29 = 394,057.08/x - Step 3: Cross multiply
843,305.16x = 1,265,373.29 × 394,057.08 - Step 4: Simplify right side
843,305.16x = 498,629,301,797.11 - Step 5: Solve for x
x = 498,629,301,797.11/843,305.16 - Step 6: Final answer
x = 591,279.79
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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.