Finding the Fourth Proportional to 703,219.98, 970,385.90 and 397,322.88
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Solution
The fourth proportional to 703,219.98, 970,385.90 and 397,322.88 is: 548,272.99
Step by Step Solution
- Step 1: Write the proportion equation
703,219.98 : 970,385.90 = 397,322.88 : x - Step 2: Convert to fraction form
703,219.98/970,385.90 = 397,322.88/x - Step 3: Cross multiply
703,219.98x = 970,385.90 × 397,322.88 - Step 4: Simplify right side
703,219.98x = 385,556,520,499.39 - Step 5: Solve for x
x = 385,556,520,499.39/703,219.98 - Step 6: Final answer
x = 548,272.99
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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.