Finding the Fourth Proportional to 703,518.88, 970,903.68 and 397,489.12
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Solution
The fourth proportional to 703,518.88, 970,903.68 and 397,489.12 is: 548,561.89
Step by Step Solution
- Step 1: Write the proportion equation
703,518.88 : 970,903.68 = 397,489.12 : x - Step 2: Convert to fraction form
703,518.88/970,903.68 = 397,489.12/x - Step 3: Cross multiply
703,518.88x = 970,903.68 × 397,489.12 - Step 4: Simplify right side
703,518.88x = 385,923,649,367.96 - Step 5: Solve for x
x = 385,923,649,367.96/703,518.88 - Step 6: Final answer
x = 548,561.89
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1.5x scale
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.