Finding the Fourth Proportional to 769,633.76, 1,062,098.52 and 430,107.68
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Solution
The fourth proportional to 769,633.76, 1,062,098.52 and 430,107.68 is: 593,550.80
Step by Step Solution
- Step 1: Write the proportion equation
769,633.76 : 1,062,098.52 = 430,107.68 : x - Step 2: Convert to fraction form
769,633.76/1,062,098.52 = 430,107.68/x - Step 3: Cross multiply
769,633.76x = 1,062,098.52 × 430,107.68 - Step 4: Simplify right side
769,633.76x = 456,816,730,368.63 - Step 5: Solve for x
x = 456,816,730,368.63/769,633.76 - Step 6: Final answer
x = 593,550.80
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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.