Finding the Fourth Proportional to 1,293,394.37, 1,784,939.29 and 720,434.79
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Solution
The fourth proportional to 1,293,394.37, 1,784,939.29 and 720,434.79 is: 994,230.68
Step by Step Solution
- Step 1: Write the proportion equation
1,293,394.37 : 1,784,939.29 = 720,434.79 : x - Step 2: Convert to fraction form
1,293,394.37/1,784,939.29 = 720,434.79/x - Step 3: Cross multiply
1,293,394.37x = 1,784,939.29 × 720,434.79 - Step 4: Simplify right side
1,293,394.37x = 1,285,932,360,752.81 - Step 5: Solve for x
x = 1,285,932,360,752.81/1,293,394.37 - Step 6: Final answer
x = 994,230.68
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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.