Finding the Fourth Proportional to 549,433.49, 825,413.39 and 387,699.68
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Solution
The fourth proportional to 549,433.49, 825,413.39 and 387,699.68 is: 582,440.84
Step by Step Solution
- Step 1: Write the proportion equation
549,433.49 : 825,413.39 = 387,699.68 : x - Step 2: Convert to fraction form
549,433.49/825,413.39 = 387,699.68/x - Step 3: Cross multiply
549,433.49x = 825,413.39 × 387,699.68 - Step 4: Simplify right side
549,433.49x = 320,012,501,105.15 - Step 5: Solve for x
x = 320,012,501,105.15/549,433.49 - Step 6: Final answer
x = 582,440.84
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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.