Finding the Fourth Proportional to 1,203,976.23, 1,661,423.70 and 687,628.62
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Solution
The fourth proportional to 1,203,976.23, 1,661,423.70 and 687,628.62 is: 948,891.23
Step by Step Solution
- Step 1: Write the proportion equation
1,203,976.23 : 1,661,423.70 = 687,628.62 : x - Step 2: Convert to fraction form
1,203,976.23/1,661,423.70 = 687,628.62/x - Step 3: Cross multiply
1,203,976.23x = 1,661,423.70 × 687,628.62 - Step 4: Simplify right side
1,203,976.23x = 1,142,442,486,066.29 - Step 5: Solve for x
x = 1,142,442,486,066.29/1,203,976.23 - Step 6: Final answer
x = 948,891.23
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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.