Finding the Fourth Proportional to 1,276,782.48, 1,761,971.79 and 703,843.15
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Solution
The fourth proportional to 1,276,782.48, 1,761,971.79 and 703,843.15 is: 971,310.14
Step by Step Solution
- Step 1: Write the proportion equation
1,276,782.48 : 1,761,971.79 = 703,843.15 : x - Step 2: Convert to fraction form
1,276,782.48/1,761,971.79 = 703,843.15/x - Step 3: Cross multiply
1,276,782.48x = 1,761,971.79 × 703,843.15 - Step 4: Simplify right side
1,276,782.48x = 1,240,151,774,884.74 - Step 5: Solve for x
x = 1,240,151,774,884.74/1,276,782.48 - Step 6: Final answer
x = 971,310.14
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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.