Finding the Fourth Proportional to 1,276,368.64, 1,761,388.71 and 703,408.81
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Solution
The fourth proportional to 1,276,368.64, 1,761,388.71 and 703,408.81 is: 970,704.15
Step by Step Solution
- Step 1: Write the proportion equation
1,276,368.64 : 1,761,388.71 = 703,408.81 : x - Step 2: Convert to fraction form
1,276,368.64/1,761,388.71 = 703,408.81/x - Step 3: Cross multiply
1,276,368.64x = 1,761,388.71 × 703,408.81 - Step 4: Simplify right side
1,276,368.64x = 1,238,976,332,045.06 - Step 5: Solve for x
x = 1,238,976,332,045.06/1,276,368.64 - Step 6: Final answer
x = 970,704.15
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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.