Finding the Fourth Proportional to 411,231.20, 616,270.80 and 327,135.20
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Solution
The fourth proportional to 411,231.20, 616,270.80 and 327,135.20 is: 490,244.59
Step by Step Solution
- Step 1: Write the proportion equation
411,231.20 : 616,270.80 = 327,135.20 : x - Step 2: Convert to fraction form
411,231.20/616,270.80 = 327,135.20/x - Step 3: Cross multiply
411,231.20x = 616,270.80 × 327,135.20 - Step 4: Simplify right side
411,231.20x = 201,603,871,412.16 - Step 5: Solve for x
x = 201,603,871,412.16/411,231.20 - Step 6: Final answer
x = 490,244.59
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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.