Finding the Fourth Proportional to 547,734.84, 755,847.09 and 305,969.28
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Solution
The fourth proportional to 547,734.84, 755,847.09 and 305,969.28 is: 422,222.53
Step by Step Solution
- Step 1: Write the proportion equation
547,734.84 : 755,847.09 = 305,969.28 : x - Step 2: Convert to fraction form
547,734.84/755,847.09 = 305,969.28/x - Step 3: Cross multiply
547,734.84x = 755,847.09 × 305,969.28 - Step 4: Simplify right side
547,734.84x = 231,265,989,917.40 - Step 5: Solve for x
x = 231,265,989,917.40/547,734.84 - Step 6: Final answer
x = 422,222.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.