Finding the Fourth Proportional to 487,187.92, 671,707.56 and 372,607.12
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Solution
The fourth proportional to 487,187.92, 671,707.56 and 372,607.12 is: 513,729.94
Step by Step Solution
- Step 1: Write the proportion equation
487,187.92 : 671,707.56 = 372,607.12 : x - Step 2: Convert to fraction form
487,187.92/671,707.56 = 372,607.12/x - Step 3: Cross multiply
487,187.92x = 671,707.56 × 372,607.12 - Step 4: Simplify right side
487,187.92x = 250,283,019,413.83 - Step 5: Solve for x
x = 250,283,019,413.83/487,187.92 - Step 6: Final answer
x = 513,729.94
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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.