Finding the Fourth Proportional to 479,647.62, 661,915.12 and 261,856.62
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Solution
The fourth proportional to 479,647.62, 661,915.12 and 261,856.62 is: 361,362.90
Step by Step Solution
- Step 1: Write the proportion equation
479,647.62 : 661,915.12 = 261,856.62 : x - Step 2: Convert to fraction form
479,647.62/661,915.12 = 261,856.62/x - Step 3: Cross multiply
479,647.62x = 661,915.12 × 261,856.62 - Step 4: Simplify right side
479,647.62x = 173,326,856,050.09 - Step 5: Solve for x
x = 173,326,856,050.09/479,647.62 - Step 6: Final answer
x = 361,362.90
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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.