Finding the Fourth Proportional to 858,430.99, 1,288,910.50 and 480,092.97
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Solution
The fourth proportional to 858,430.99, 1,288,910.50 and 480,092.97 is: 720,846.39
Step by Step Solution
- Step 1: Write the proportion equation
858,430.99 : 1,288,910.50 = 480,092.97 : x - Step 2: Convert to fraction form
858,430.99/1,288,910.50 = 480,092.97/x - Step 3: Cross multiply
858,430.99x = 1,288,910.50 × 480,092.97 - Step 4: Simplify right side
858,430.99x = 618,796,874,992.58 - Step 5: Solve for x
x = 618,796,874,992.58/858,430.99 - Step 6: Final answer
x = 720,846.39
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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.