Finding the Fourth Proportional to 1,218,992.64, 1,682,661.36 and 735,578.16
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Solution
The fourth proportional to 1,218,992.64, 1,682,661.36 and 735,578.16 is: 1,015,370.32
Step by Step Solution
- Step 1: Write the proportion equation
1,218,992.64 : 1,682,661.36 = 735,578.16 : x - Step 2: Convert to fraction form
1,218,992.64/1,682,661.36 = 735,578.16/x - Step 3: Cross multiply
1,218,992.64x = 1,682,661.36 × 735,578.16 - Step 4: Simplify right side
1,218,992.64x = 1,237,728,947,091.90 - Step 5: Solve for x
x = 1,237,728,947,091.90/1,218,992.64 - Step 6: Final answer
x = 1,015,370.32
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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.