Finding the Fourth Proportional to 568,367.36, 784,343.18 and 310,243.28
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Solution
The fourth proportional to 568,367.36, 784,343.18 and 310,243.28 is: 428,133.66
Step by Step Solution
- Step 1: Write the proportion equation
568,367.36 : 784,343.18 = 310,243.28 : x - Step 2: Convert to fraction form
568,367.36/784,343.18 = 310,243.28/x - Step 3: Cross multiply
568,367.36x = 784,343.18 × 310,243.28 - Step 4: Simplify right side
568,367.36x = 243,337,200,808.83 - Step 5: Solve for x
x = 243,337,200,808.83/568,367.36 - Step 6: Final answer
x = 428,133.66
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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.