Finding the Fourth Proportional to 1,293,116.09, 1,784,555.56 and 720,156.26
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Solution
The fourth proportional to 1,293,116.09, 1,784,555.56 and 720,156.26 is: 993,846.47
Step by Step Solution
- Step 1: Write the proportion equation
1,293,116.09 : 1,784,555.56 = 720,156.26 : x - Step 2: Convert to fraction form
1,293,116.09/1,784,555.56 = 720,156.26/x - Step 3: Cross multiply
1,293,116.09x = 1,784,555.56 × 720,156.26 - Step 4: Simplify right side
1,293,116.09x = 1,285,158,863,213.39 - Step 5: Solve for x
x = 1,285,158,863,213.39/1,293,116.09 - Step 6: Final answer
x = 993,846.47
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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.