Finding the Fourth Proportional to 639,413.49, 882,390.69 and 352,933.65
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Solution
The fourth proportional to 639,413.49, 882,390.69 and 352,933.65 is: 487,048.48
Step by Step Solution
- Step 1: Write the proportion equation
639,413.49 : 882,390.69 = 352,933.65 : x - Step 2: Convert to fraction form
639,413.49/882,390.69 = 352,933.65/x - Step 3: Cross multiply
639,413.49x = 882,390.69 × 352,933.65 - Step 4: Simplify right side
639,413.49x = 311,425,365,183.05 - Step 5: Solve for x
x = 311,425,365,183.05/639,413.49 - Step 6: Final answer
x = 487,048.48
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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.