Finding the Fourth Proportional to 782,842.20, 1,174,490.88 and 327,648.18
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Solution
The fourth proportional to 782,842.20, 1,174,490.88 and 327,648.18 is: 491,567.52
Step by Step Solution
- Step 1: Write the proportion equation
782,842.20 : 1,174,490.88 = 327,648.18 : x - Step 2: Convert to fraction form
782,842.20/1,174,490.88 = 327,648.18/x - Step 3: Cross multiply
782,842.20x = 1,174,490.88 × 327,648.18 - Step 4: Simplify right side
782,842.20x = 384,819,799,258.60 - Step 5: Solve for x
x = 384,819,799,258.60/782,842.20 - Step 6: Final answer
x = 491,567.52
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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.