Finding the Fourth Proportional to 1,543,017.75, 2,128,872.42 and 999,570.12
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Solution
The fourth proportional to 1,543,017.75, 2,128,872.42 and 999,570.12 is: 1,379,088.00
Step by Step Solution
- Step 1: Write the proportion equation
1,543,017.75 : 2,128,872.42 = 999,570.12 : x - Step 2: Convert to fraction form
1,543,017.75/2,128,872.42 = 999,570.12/x - Step 3: Cross multiply
1,543,017.75x = 2,128,872.42 × 999,570.12 - Step 4: Simplify right side
1,543,017.75x = 2,127,957,260,324.09 - Step 5: Solve for x
x = 2,127,957,260,324.09/1,543,017.75 - Step 6: Final answer
x = 1,379,088.00
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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.