Finding the Fourth Proportional to 531,181.76, 733,024.16 and 289,474.88
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Solution
The fourth proportional to 531,181.76, 733,024.16 and 289,474.88 is: 399,471.70
Step by Step Solution
- Step 1: Write the proportion equation
531,181.76 : 733,024.16 = 289,474.88 : x - Step 2: Convert to fraction form
531,181.76/733,024.16 = 289,474.88/x - Step 3: Cross multiply
531,181.76x = 733,024.16 × 289,474.88 - Step 4: Simplify right side
531,181.76x = 212,192,080,753.10 - Step 5: Solve for x
x = 212,192,080,753.10/531,181.76 - Step 6: Final answer
x = 399,471.70
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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.