Finding the Fourth Proportional to 449,631.36, 674,779.68 and 212,975.28
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Solution
The fourth proportional to 449,631.36, 674,779.68 and 212,975.28 is: 319,620.48
Step by Step Solution
- Step 1: Write the proportion equation
449,631.36 : 674,779.68 = 212,975.28 : x - Step 2: Convert to fraction form
449,631.36/674,779.68 = 212,975.28/x - Step 3: Cross multiply
449,631.36x = 674,779.68 × 212,975.28 - Step 4: Simplify right side
449,631.36x = 143,711,391,286.31 - Step 5: Solve for x
x = 143,711,391,286.31/449,631.36 - Step 6: Final answer
x = 319,620.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.