Finding the Fourth Proportional to 412,688.12, 619,032.38 and 272,413.96
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Solution
The fourth proportional to 412,688.12, 619,032.38 and 272,413.96 is: 408,621.07
Step by Step Solution
- Step 1: Write the proportion equation
412,688.12 : 619,032.38 = 272,413.96 : x - Step 2: Convert to fraction form
412,688.12/619,032.38 = 272,413.96/x - Step 3: Cross multiply
412,688.12x = 619,032.38 × 272,413.96 - Step 4: Simplify right side
412,688.12x = 168,633,062,004.03 - Step 5: Solve for x
x = 168,633,062,004.03/412,688.12 - Step 6: Final answer
x = 408,621.07
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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.