Finding the Fourth Proportional to 677,129.04, 1,015,610.49 and 392,974.20
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Solution
The fourth proportional to 677,129.04, 1,015,610.49 and 392,974.20 is: 589,413.09
Step by Step Solution
- Step 1: Write the proportion equation
677,129.04 : 1,015,610.49 = 392,974.20 : x - Step 2: Convert to fraction form
677,129.04/1,015,610.49 = 392,974.20/x - Step 3: Cross multiply
677,129.04x = 1,015,610.49 × 392,974.20 - Step 4: Simplify right side
677,129.04x = 399,108,719,819.36 - Step 5: Solve for x
x = 399,108,719,819.36/677,129.04 - Step 6: Final answer
x = 589,413.09
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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.