Finding the Fourth Proportional to 1,276,071.53, 1,761,102.81 and 953,221.12
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Solution
The fourth proportional to 1,276,071.53, 1,761,102.81 and 953,221.12 is: 1,315,537.85
Step by Step Solution
- Step 1: Write the proportion equation
1,276,071.53 : 1,761,102.81 = 953,221.12 : x - Step 2: Convert to fraction form
1,276,071.53/1,761,102.81 = 953,221.12/x - Step 3: Cross multiply
1,276,071.53x = 1,761,102.81 × 953,221.12 - Step 4: Simplify right side
1,276,071.53x = 1,678,720,388,580.59 - Step 5: Solve for x
x = 1,678,720,388,580.59/1,276,071.53 - Step 6: Final answer
x = 1,315,537.85
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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.