Finding the Fourth Proportional to 505,877.36, 698,124.84 and 279,537.68
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Solution
The fourth proportional to 505,877.36, 698,124.84 and 279,537.68 is: 385,769.78
Step by Step Solution
- Step 1: Write the proportion equation
505,877.36 : 698,124.84 = 279,537.68 : x - Step 2: Convert to fraction form
505,877.36/698,124.84 = 279,537.68/x - Step 3: Cross multiply
505,877.36x = 698,124.84 × 279,537.68 - Step 4: Simplify right side
505,877.36x = 195,152,198,123.97 - Step 5: Solve for x
x = 195,152,198,123.97/505,877.36 - Step 6: Final answer
x = 385,769.78
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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.