Finding the Fourth Proportional to 1,898,921.26, 2,620,345.29 and 1,124,413.15
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Solution
The fourth proportional to 1,898,921.26, 2,620,345.29 and 1,124,413.15 is: 1,551,591.82
Step by Step Solution
- Step 1: Write the proportion equation
1,898,921.26 : 2,620,345.29 = 1,124,413.15 : x - Step 2: Convert to fraction form
1,898,921.26/2,620,345.29 = 1,124,413.15/x - Step 3: Cross multiply
1,898,921.26x = 2,620,345.29 × 1,124,413.15 - Step 4: Simplify right side
1,898,921.26x = 2,946,350,701,616.56 - Step 5: Solve for x
x = 2,946,350,701,616.56/1,898,921.26 - Step 6: Final answer
x = 1,551,591.82
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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.