Finding the Fourth Proportional to 638,377.08, 880,942.68 and 351,897.09
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Solution
The fourth proportional to 638,377.08, 880,942.68 and 351,897.09 is: 485,608.23
Step by Step Solution
- Step 1: Write the proportion equation
638,377.08 : 880,942.68 = 351,897.09 : x - Step 2: Convert to fraction form
638,377.08/880,942.68 = 351,897.09/x - Step 3: Cross multiply
638,377.08x = 880,942.68 × 351,897.09 - Step 4: Simplify right side
638,377.08x = 310,001,165,548.80 - Step 5: Solve for x
x = 310,001,165,548.80/638,377.08 - Step 6: Final answer
x = 485,608.23
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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.