Finding the Fourth Proportional to 720,887.60, 994,845.84 and 394,219.82
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Solution
The fourth proportional to 720,887.60, 994,845.84 and 394,219.82 is: 544,034.81
Step by Step Solution
- Step 1: Write the proportion equation
720,887.60 : 994,845.84 = 394,219.82 : x - Step 2: Convert to fraction form
720,887.60/994,845.84 = 394,219.82/x - Step 3: Cross multiply
720,887.60x = 994,845.84 × 394,219.82 - Step 4: Simplify right side
720,887.60x = 392,187,947,972.55 - Step 5: Solve for x
x = 392,187,947,972.55/720,887.60 - Step 6: Final answer
x = 544,034.81
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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.