Finding the Fourth Proportional to 459,795.76, 689,694.02 and 219,853.20
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Solution
The fourth proportional to 459,795.76, 689,694.02 and 219,853.20 is: 329,779.99
Step by Step Solution
- Step 1: Write the proportion equation
459,795.76 : 689,694.02 = 219,853.20 : x - Step 2: Convert to fraction form
459,795.76/689,694.02 = 219,853.20/x - Step 3: Cross multiply
459,795.76x = 689,694.02 × 219,853.20 - Step 4: Simplify right side
459,795.76x = 151,631,440,866.07 - Step 5: Solve for x
x = 151,631,440,866.07/459,795.76 - Step 6: Final answer
x = 329,779.99
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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.