Finding the Fourth Proportional to 810,361.92, 1,216,305.58 and 411,289.08
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Solution
The fourth proportional to 810,361.92, 1,216,305.58 and 411,289.08 is: 617,320.72
Step by Step Solution
- Step 1: Write the proportion equation
810,361.92 : 1,216,305.58 = 411,289.08 : x - Step 2: Convert to fraction form
810,361.92/1,216,305.58 = 411,289.08/x - Step 3: Cross multiply
810,361.92x = 1,216,305.58 × 411,289.08 - Step 4: Simplify right side
810,361.92x = 500,253,202,997.07 - Step 5: Solve for x
x = 500,253,202,997.07/810,361.92 - Step 6: Final answer
x = 617,320.72
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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.