Finding the Fourth Proportional to 531,272.12, 733,134.24 and 289,549.62
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Solution
The fourth proportional to 531,272.12, 733,134.24 and 289,549.62 is: 399,566.88
Step by Step Solution
- Step 1: Write the proportion equation
531,272.12 : 733,134.24 = 289,549.62 : x - Step 2: Convert to fraction form
531,272.12/733,134.24 = 289,549.62/x - Step 3: Cross multiply
531,272.12x = 733,134.24 × 289,549.62 - Step 4: Simplify right side
531,272.12x = 212,278,740,600.99 - Step 5: Solve for x
x = 212,278,740,600.99/531,272.12 - Step 6: Final answer
x = 399,566.88
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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.