Finding the Fourth Proportional to 992,917.68, 1,370,232.36 and 540,211.92
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Solution
The fourth proportional to 992,917.68, 1,370,232.36 and 540,211.92 is: 745,495.69
Step by Step Solution
- Step 1: Write the proportion equation
992,917.68 : 1,370,232.36 = 540,211.92 : x - Step 2: Convert to fraction form
992,917.68/1,370,232.36 = 540,211.92/x - Step 3: Cross multiply
992,917.68x = 1,370,232.36 × 540,211.92 - Step 4: Simplify right side
992,917.68x = 740,215,854,041.73 - Step 5: Solve for x
x = 740,215,854,041.73/992,917.68 - Step 6: Final answer
x = 745,495.69
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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.