Finding the Fourth Proportional to 770,245.12, 1,062,580.17 and 498,400.48
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Solution
The fourth proportional to 770,245.12, 1,062,580.17 and 498,400.48 is: 687,560.95
Step by Step Solution
- Step 1: Write the proportion equation
770,245.12 : 1,062,580.17 = 498,400.48 : x - Step 2: Convert to fraction form
770,245.12/1,062,580.17 = 498,400.48/x - Step 3: Cross multiply
770,245.12x = 1,062,580.17 × 498,400.48 - Step 4: Simplify right side
770,245.12x = 529,590,466,766.48 - Step 5: Solve for x
x = 529,590,466,766.48/770,245.12 - Step 6: Final answer
x = 687,560.95
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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.