Finding the Fourth Proportional to 1,215,192.58, 1,821,203.43 and 879,364.42
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Solution
The fourth proportional to 1,215,192.58, 1,821,203.43 and 879,364.42 is: 1,317,899.34
Step by Step Solution
- Step 1: Write the proportion equation
1,215,192.58 : 1,821,203.43 = 879,364.42 : x - Step 2: Convert to fraction form
1,215,192.58/1,821,203.43 = 879,364.42/x - Step 3: Cross multiply
1,215,192.58x = 1,821,203.43 × 879,364.42 - Step 4: Simplify right side
1,215,192.58x = 1,601,501,497,923.96 - Step 5: Solve for x
x = 1,601,501,497,923.96/1,215,192.58 - Step 6: Final answer
x = 1,317,899.34
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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.