Finding the Fourth Proportional to 638,424.23, 881,028.11 and 351,938.03
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Solution
The fourth proportional to 638,424.23, 881,028.11 and 351,938.03 is: 485,675.95
Step by Step Solution
- Step 1: Write the proportion equation
638,424.23 : 881,028.11 = 351,938.03 : x - Step 2: Convert to fraction form
638,424.23/881,028.11 = 351,938.03/x - Step 3: Cross multiply
638,424.23x = 881,028.11 × 351,938.03 - Step 4: Simplify right side
638,424.23x = 310,067,295,648.33 - Step 5: Solve for x
x = 310,067,295,648.33/638,424.23 - Step 6: Final answer
x = 485,675.95
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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.