Finding the Fourth Proportional to 490,361.71, 676,694.54 and 272,564.68
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Solution
The fourth proportional to 490,361.71, 676,694.54 and 272,564.68 is: 376,136.69
Step by Step Solution
- Step 1: Write the proportion equation
490,361.71 : 676,694.54 = 272,564.68 : x - Step 2: Convert to fraction form
490,361.71/676,694.54 = 272,564.68/x - Step 3: Cross multiply
490,361.71x = 676,694.54 × 272,564.68 - Step 4: Simplify right side
490,361.71x = 184,443,029,390.02 - Step 5: Solve for x
x = 184,443,029,390.02/490,361.71 - Step 6: Final answer
x = 376,136.69
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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.