Finding the Fourth Proportional to 769,677.63, 1,062,187.95 and 430,145.88
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Solution
The fourth proportional to 769,677.63, 1,062,187.95 and 430,145.88 is: 593,619.66
Step by Step Solution
- Step 1: Write the proportion equation
769,677.63 : 1,062,187.95 = 430,145.88 : x - Step 2: Convert to fraction form
769,677.63/1,062,187.95 = 430,145.88/x - Step 3: Cross multiply
769,677.63x = 1,062,187.95 × 430,145.88 - Step 4: Simplify right side
769,677.63x = 456,895,770,478.15 - Step 5: Solve for x
x = 456,895,770,478.15/769,677.63 - Step 6: Final answer
x = 593,619.66
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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.