Finding the Fourth Proportional to 1,313,708.15, 1,812,961.98 and 762,381.17
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Solution
The fourth proportional to 1,313,708.15, 1,812,961.98 and 762,381.17 is: 1,052,111.97
Step by Step Solution
- Step 1: Write the proportion equation
1,313,708.15 : 1,812,961.98 = 762,381.17 : x - Step 2: Convert to fraction form
1,313,708.15/1,812,961.98 = 762,381.17/x - Step 3: Cross multiply
1,313,708.15x = 1,812,961.98 × 762,381.17 - Step 4: Simplify right side
1,313,708.15x = 1,382,168,066,413.11 - Step 5: Solve for x
x = 1,382,168,066,413.11/1,313,708.15 - Step 6: Final answer
x = 1,052,111.97
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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.