Finding the Fourth Proportional to 636,450.88, 878,083.62 and 394,646.44
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Solution
The fourth proportional to 636,450.88, 878,083.62 and 394,646.44 is: 544,476.54
Step by Step Solution
- Step 1: Write the proportion equation
636,450.88 : 878,083.62 = 394,646.44 : x - Step 2: Convert to fraction form
636,450.88/878,083.62 = 394,646.44/x - Step 3: Cross multiply
636,450.88x = 878,083.62 × 394,646.44 - Step 4: Simplify right side
636,450.88x = 346,532,574,655.31 - Step 5: Solve for x
x = 346,532,574,655.31/636,450.88 - Step 6: Final answer
x = 544,476.54
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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.