Finding the Fourth Proportional to 490,790.30, 677,331.51 and 273,039.99
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Solution
The fourth proportional to 490,790.30, 677,331.51 and 273,039.99 is: 376,817.94
Step by Step Solution
- Step 1: Write the proportion equation
490,790.30 : 677,331.51 = 273,039.99 : x - Step 2: Convert to fraction form
490,790.30/677,331.51 = 273,039.99/x - Step 3: Cross multiply
490,790.30x = 677,331.51 × 273,039.99 - Step 4: Simplify right side
490,790.30x = 184,938,588,978.00 - Step 5: Solve for x
x = 184,938,588,978.00/490,790.30 - Step 6: Final answer
x = 376,817.94
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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.