Finding the Fourth Proportional to 478,837.31, 716,481.79 and 383,779.19
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Solution
The fourth proportional to 478,837.31, 716,481.79 and 383,779.19 is: 574,246.80
Step by Step Solution
- Step 1: Write the proportion equation
478,837.31 : 716,481.79 = 383,779.19 : x - Step 2: Convert to fraction form
478,837.31/716,481.79 = 383,779.19/x - Step 3: Cross multiply
478,837.31x = 716,481.79 × 383,779.19 - Step 4: Simplify right side
478,837.31x = 274,970,796,474.09 - Step 5: Solve for x
x = 274,970,796,474.09/478,837.31 - Step 6: Final answer
x = 574,246.80
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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.