Finding the Fourth Proportional to 1,617,145.80, 2,425,718.70 and 1,538,413.80
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Solution
The fourth proportional to 1,617,145.80, 2,425,718.70 and 1,538,413.80 is: 2,307,620.70
Step by Step Solution
- Step 1: Write the proportion equation
1,617,145.80 : 2,425,718.70 = 1,538,413.80 : x - Step 2: Convert to fraction form
1,617,145.80/2,425,718.70 = 1,538,413.80/x - Step 3: Cross multiply
1,617,145.80x = 2,425,718.70 × 1,538,413.80 - Step 4: Simplify right side
1,617,145.80x = 3,731,759,122,998.06 - Step 5: Solve for x
x = 3,731,759,122,998.06/1,617,145.80 - Step 6: Final answer
x = 2,307,620.70
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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.