Finding the Fourth Proportional to 939,486.98, 1,409,463.75 and 274,638.98
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Solution
The fourth proportional to 939,486.98, 1,409,463.75 and 274,638.98 is: 412,026.66
Step by Step Solution
- Step 1: Write the proportion equation
939,486.98 : 1,409,463.75 = 274,638.98 : x - Step 2: Convert to fraction form
939,486.98/1,409,463.75 = 274,638.98/x - Step 3: Cross multiply
939,486.98x = 1,409,463.75 × 274,638.98 - Step 4: Simplify right side
939,486.98x = 387,093,686,646.98 - Step 5: Solve for x
x = 387,093,686,646.98/939,486.98 - Step 6: Final answer
x = 412,026.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.