Finding the Fourth Proportional to 447.87, 675.80 and 430.99
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Solution
The fourth proportional to 447.87, 675.80 and 430.99 is: 650.33
Step by Step Solution
- Step 1: Write the proportion equation
447.87 : 675.80 = 430.99 : x - Step 2: Convert to fraction form
447.87/675.80 = 430.99/x - Step 3: Cross multiply
447.87x = 675.80 × 430.99 - Step 4: Simplify right side
447.87x = 291,263.04 - Step 5: Solve for x
x = 291,263.04/447.87 - Step 6: Final answer
x = 650.33
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.