Finding the Fourth Proportional to 1,581,036.68, 2,181,828.14 and 855,884.20
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Solution
The fourth proportional to 1,581,036.68, 2,181,828.14 and 855,884.20 is: 1,181,118.85
Step by Step Solution
- Step 1: Write the proportion equation
1,581,036.68 : 2,181,828.14 = 855,884.20 : x - Step 2: Convert to fraction form
1,581,036.68/2,181,828.14 = 855,884.20/x - Step 3: Cross multiply
1,581,036.68x = 2,181,828.14 × 855,884.20 - Step 4: Simplify right side
1,581,036.68x = 1,867,392,232,141.39 - Step 5: Solve for x
x = 1,867,392,232,141.39/1,581,036.68 - Step 6: Final answer
x = 1,181,118.85
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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.