Finding the Fourth Proportional to 449,748.11, 620,592.42 and 288,821.14
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Solution
The fourth proportional to 449,748.11, 620,592.42 and 288,821.14 is: 398,534.66
Step by Step Solution
- Step 1: Write the proportion equation
449,748.11 : 620,592.42 = 288,821.14 : x - Step 2: Convert to fraction form
449,748.11/620,592.42 = 288,821.14/x - Step 3: Cross multiply
449,748.11x = 620,592.42 × 288,821.14 - Step 4: Simplify right side
449,748.11x = 179,240,210,219.76 - Step 5: Solve for x
x = 179,240,210,219.76/449,748.11 - Step 6: Final answer
x = 398,534.66
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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.