Finding the Fourth Proportional to 478,779.68, 718,091.74 and 226,059.68
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Solution
The fourth proportional to 478,779.68, 718,091.74 and 226,059.68 is: 339,052.80
Step by Step Solution
- Step 1: Write the proportion equation
478,779.68 : 718,091.74 = 226,059.68 : x - Step 2: Convert to fraction form
478,779.68/718,091.74 = 226,059.68/x - Step 3: Cross multiply
478,779.68x = 718,091.74 × 226,059.68 - Step 4: Simplify right side
478,779.68x = 162,331,588,955.04 - Step 5: Solve for x
x = 162,331,588,955.04/478,779.68 - Step 6: Final answer
x = 339,052.80
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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.