Finding the Fourth Proportional to 641,858.84, 885,779.01 and 351,482.66
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Solution
The fourth proportional to 641,858.84, 885,779.01 and 351,482.66 is: 485,053.63
Step by Step Solution
- Step 1: Write the proportion equation
641,858.84 : 885,779.01 = 351,482.66 : x - Step 2: Convert to fraction form
641,858.84/885,779.01 = 351,482.66/x - Step 3: Cross multiply
641,858.84x = 885,779.01 × 351,482.66 - Step 4: Simplify right side
641,858.84x = 311,335,962,606.97 - Step 5: Solve for x
x = 311,335,962,606.97/641,858.84 - Step 6: Final answer
x = 485,053.63
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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.