Finding the Fourth Proportional to 643,481.36, 888,046.26 and 371,560.70
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Solution
The fourth proportional to 643,481.36, 888,046.26 and 371,560.70 is: 512,778.01
Step by Step Solution
- Step 1: Write the proportion equation
643,481.36 : 888,046.26 = 371,560.70 : x - Step 2: Convert to fraction form
643,481.36/888,046.26 = 371,560.70/x - Step 3: Cross multiply
643,481.36x = 888,046.26 × 371,560.70 - Step 4: Simplify right side
643,481.36x = 329,963,089,997.98 - Step 5: Solve for x
x = 329,963,089,997.98/643,481.36 - Step 6: Final answer
x = 512,778.01
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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.