Finding the Fourth Proportional to 1,276,394.10, 1,761,423.80 and 703,434.26
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Solution
The fourth proportional to 1,276,394.10, 1,761,423.80 and 703,434.26 is: 970,739.25
Step by Step Solution
- Step 1: Write the proportion equation
1,276,394.10 : 1,761,423.80 = 703,434.26 : x - Step 2: Convert to fraction form
1,276,394.10/1,761,423.80 = 703,434.26/x - Step 3: Cross multiply
1,276,394.10x = 1,761,423.80 × 703,434.26 - Step 4: Simplify right side
1,276,394.10x = 1,239,045,847,299.39 - Step 5: Solve for x
x = 1,239,045,847,299.39/1,276,394.10 - Step 6: Final answer
x = 970,739.25
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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.