Finding the Fourth Proportional to 986,708.97, 1,361,619.95 and 619,383.69
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Solution
The fourth proportional to 986,708.97, 1,361,619.95 and 619,383.69 is: 854,725.37
Step by Step Solution
- Step 1: Write the proportion equation
986,708.97 : 1,361,619.95 = 619,383.69 : x - Step 2: Convert to fraction form
986,708.97/1,361,619.95 = 619,383.69/x - Step 3: Cross multiply
986,708.97x = 1,361,619.95 × 619,383.69 - Step 4: Simplify right side
986,708.97x = 843,365,185,911.70 - Step 5: Solve for x
x = 843,365,185,911.70/986,708.97 - Step 6: Final answer
x = 854,725.37
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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.