Finding the Fourth Proportional to 521,466.46, 719,519.63 and 317,380.68
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Solution
The fourth proportional to 521,466.46, 719,519.63 and 317,380.68 is: 437,921.99
Step by Step Solution
- Step 1: Write the proportion equation
521,466.46 : 719,519.63 = 317,380.68 : x - Step 2: Convert to fraction form
521,466.46/719,519.63 = 317,380.68/x - Step 3: Cross multiply
521,466.46x = 719,519.63 × 317,380.68 - Step 4: Simplify right side
521,466.46x = 228,361,627,855.85 - Step 5: Solve for x
x = 228,361,627,855.85/521,466.46 - Step 6: Final answer
x = 437,921.99
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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.