Finding the Fourth Proportional to 625,197.70, 862,455.40 and 395,367.92
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Solution
The fourth proportional to 625,197.70, 862,455.40 and 395,367.92 is: 545,406.99
Step by Step Solution
- Step 1: Write the proportion equation
625,197.70 : 862,455.40 = 395,367.92 : x - Step 2: Convert to fraction form
625,197.70/862,455.40 = 395,367.92/x - Step 3: Cross multiply
625,197.70x = 862,455.40 × 395,367.92 - Step 4: Simplify right side
625,197.70x = 340,987,195,524.28 - Step 5: Solve for x
x = 340,987,195,524.28/625,197.70 - Step 6: Final answer
x = 545,406.99
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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.