Finding the Fourth Proportional to 934,638.21, 1,401,968.55 and 260,678.49
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Solution
The fourth proportional to 934,638.21, 1,401,968.55 and 260,678.49 is: 391,020.86
Step by Step Solution
- Step 1: Write the proportion equation
934,638.21 : 1,401,968.55 = 260,678.49 : x - Step 2: Convert to fraction form
934,638.21/1,401,968.55 = 260,678.49/x - Step 3: Cross multiply
934,638.21x = 1,401,968.55 × 260,678.49 - Step 4: Simplify right side
934,638.21x = 365,463,040,361.65 - Step 5: Solve for x
x = 365,463,040,361.65/934,638.21 - Step 6: Final answer
x = 391,020.86
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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.