Finding the Fourth Proportional to 769,788.05, 1,062,074.19 and 537,208.80
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Solution
The fourth proportional to 769,788.05, 1,062,074.19 and 537,208.80 is: 741,185.32
Step by Step Solution
- Step 1: Write the proportion equation
769,788.05 : 1,062,074.19 = 537,208.80 : x - Step 2: Convert to fraction form
769,788.05/1,062,074.19 = 537,208.80/x - Step 3: Cross multiply
769,788.05x = 1,062,074.19 × 537,208.80 - Step 4: Simplify right side
769,788.05x = 570,555,599,152.63 - Step 5: Solve for x
x = 570,555,599,152.63/769,788.05 - Step 6: Final answer
x = 741,185.32
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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.