Finding the Fourth Proportional to 719,415.20, 1,079,296.56 and 270,140.96
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Solution
The fourth proportional to 719,415.20, 1,079,296.56 and 270,140.96 is: 405,276.69
Step by Step Solution
- Step 1: Write the proportion equation
719,415.20 : 1,079,296.56 = 270,140.96 : x - Step 2: Convert to fraction form
719,415.20/1,079,296.56 = 270,140.96/x - Step 3: Cross multiply
719,415.20x = 1,079,296.56 × 270,140.96 - Step 4: Simplify right side
719,415.20x = 291,562,208,843.10 - Step 5: Solve for x
x = 291,562,208,843.10/719,415.20 - Step 6: Final answer
x = 405,276.69
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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.