Finding the Fourth Proportional to 898,489.09, 1,239,905.41 and 490,589.65
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Solution
The fourth proportional to 898,489.09, 1,239,905.41 and 490,589.65 is: 677,008.51
Step by Step Solution
- Step 1: Write the proportion equation
898,489.09 : 1,239,905.41 = 490,589.65 : x - Step 2: Convert to fraction form
898,489.09/1,239,905.41 = 490,589.65/x - Step 3: Cross multiply
898,489.09x = 1,239,905.41 × 490,589.65 - Step 4: Simplify right side
898,489.09x = 608,284,761,125.01 - Step 5: Solve for x
x = 608,284,761,125.01/898,489.09 - Step 6: Final answer
x = 677,008.51
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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.