Finding the Fourth Proportional to 1,276,392.11, 1,761,421.05 and 703,432.26
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Solution
The fourth proportional to 1,276,392.11, 1,761,421.05 and 703,432.26 is: 970,736.49
Step by Step Solution
- Step 1: Write the proportion equation
1,276,392.11 : 1,761,421.05 = 703,432.26 : x - Step 2: Convert to fraction form
1,276,392.11/1,761,421.05 = 703,432.26/x - Step 3: Cross multiply
1,276,392.11x = 1,761,421.05 × 703,432.26 - Step 4: Simplify right side
1,276,392.11x = 1,239,040,390,013.07 - Step 5: Solve for x
x = 1,239,040,390,013.07/1,276,392.11 - Step 6: Final answer
x = 970,736.49
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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.