Finding the Fourth Proportional to 1,252,689.80, 1,728,706.74 and 743,811.08
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Solution
The fourth proportional to 1,252,689.80, 1,728,706.74 and 743,811.08 is: 1,026,456.21
Step by Step Solution
- Step 1: Write the proportion equation
1,252,689.80 : 1,728,706.74 = 743,811.08 : x - Step 2: Convert to fraction form
1,252,689.80/1,728,706.74 = 743,811.08/x - Step 3: Cross multiply
1,252,689.80x = 1,728,706.74 × 743,811.08 - Step 4: Simplify right side
1,252,689.80x = 1,285,831,227,282.68 - Step 5: Solve for x
x = 1,285,831,227,282.68/1,252,689.80 - Step 6: Final answer
x = 1,026,456.21
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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.