Finding the Fourth Proportional to 1,581,054.09, 2,181,854.17 and 855,901.26
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Solution
The fourth proportional to 1,581,054.09, 2,181,854.17 and 855,901.26 is: 1,181,143.49
Step by Step Solution
- Step 1: Write the proportion equation
1,581,054.09 : 2,181,854.17 = 855,901.26 : x - Step 2: Convert to fraction form
1,581,054.09/2,181,854.17 = 855,901.26/x - Step 3: Cross multiply
1,581,054.09x = 2,181,854.17 × 855,901.26 - Step 4: Simplify right side
1,581,054.09x = 1,867,451,734,309.13 - Step 5: Solve for x
x = 1,867,451,734,309.13/1,581,054.09 - Step 6: Final answer
x = 1,181,143.49
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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.