Finding the Fourth Proportional to 544,456.40, 816,850.74 and 278,403.80
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Solution
The fourth proportional to 544,456.40, 816,850.74 and 278,403.80 is: 417,690.65
Step by Step Solution
- Step 1: Write the proportion equation
544,456.40 : 816,850.74 = 278,403.80 : x - Step 2: Convert to fraction form
544,456.40/816,850.74 = 278,403.80/x - Step 3: Cross multiply
544,456.40x = 816,850.74 × 278,403.80 - Step 4: Simplify right side
544,456.40x = 227,414,350,048.81 - Step 5: Solve for x
x = 227,414,350,048.81/544,456.40 - Step 6: Final answer
x = 417,690.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.