Finding the Fourth Proportional to 717,069.12, 989,517.80 and 394,716.26
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Solution
The fourth proportional to 717,069.12, 989,517.80 and 394,716.26 is: 544,687.74
Step by Step Solution
- Step 1: Write the proportion equation
717,069.12 : 989,517.80 = 394,716.26 : x - Step 2: Convert to fraction form
717,069.12/989,517.80 = 394,716.26/x - Step 3: Cross multiply
717,069.12x = 989,517.80 × 394,716.26 - Step 4: Simplify right side
717,069.12x = 390,578,761,258.63 - Step 5: Solve for x
x = 390,578,761,258.63/717,069.12 - Step 6: Final answer
x = 544,687.74
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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.