Finding the Fourth Proportional to 1,320,649.30, 1,819,231.41 and 1,126,424.26
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Solution
The fourth proportional to 1,320,649.30, 1,819,231.41 and 1,126,424.26 is: 1,551,680.98
Step by Step Solution
- Step 1: Write the proportion equation
1,320,649.30 : 1,819,231.41 = 1,126,424.26 : x - Step 2: Convert to fraction form
1,320,649.30/1,819,231.41 = 1,126,424.26/x - Step 3: Cross multiply
1,320,649.30x = 1,819,231.41 × 1,126,424.26 - Step 4: Simplify right side
1,320,649.30x = 2,049,226,394,778.01 - Step 5: Solve for x
x = 2,049,226,394,778.01/1,320,649.30 - Step 6: Final answer
x = 1,551,680.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.