Finding the Fourth Proportional to 1,888,313.11, 2,605,798.96 and 1,028,879.82
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Solution
The fourth proportional to 1,888,313.11, 2,605,798.96 and 1,028,879.82 is: 1,419,814.31
Step by Step Solution
- Step 1: Write the proportion equation
1,888,313.11 : 2,605,798.96 = 1,028,879.82 : x - Step 2: Convert to fraction form
1,888,313.11/2,605,798.96 = 1,028,879.82/x - Step 3: Cross multiply
1,888,313.11x = 2,605,798.96 × 1,028,879.82 - Step 4: Simplify right side
1,888,313.11x = 2,681,053,962,348.79 - Step 5: Solve for x
x = 2,681,053,962,348.79/1,888,313.11 - Step 6: Final answer
x = 1,419,814.31
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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.