Finding the Fourth Proportional to 1,438,067.16, 2,157,181.92 and 373,080.96
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Solution
The fourth proportional to 1,438,067.16, 2,157,181.92 and 373,080.96 is: 559,642.50
Step by Step Solution
- Step 1: Write the proportion equation
1,438,067.16 : 2,157,181.92 = 373,080.96 : x - Step 2: Convert to fraction form
1,438,067.16/2,157,181.92 = 373,080.96/x - Step 3: Cross multiply
1,438,067.16x = 2,157,181.92 × 373,080.96 - Step 4: Simplify right side
1,438,067.16x = 804,803,501,608.24 - Step 5: Solve for x
x = 804,803,501,608.24/1,438,067.16 - Step 6: Final answer
x = 559,642.50
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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.