Finding the Fourth Proportional to 1,186,088.10, 1,637,201.07 and 720,940.56
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Solution
The fourth proportional to 1,186,088.10, 1,637,201.07 and 720,940.56 is: 995,140.80
Step by Step Solution
- Step 1: Write the proportion equation
1,186,088.10 : 1,637,201.07 = 720,940.56 : x - Step 2: Convert to fraction form
1,186,088.10/1,637,201.07 = 720,940.56/x - Step 3: Cross multiply
1,186,088.10x = 1,637,201.07 × 720,940.56 - Step 4: Simplify right side
1,186,088.10x = 1,180,324,656,238.40 - Step 5: Solve for x
x = 1,180,324,656,238.40/1,186,088.10 - Step 6: Final answer
x = 995,140.80
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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.