Finding the Fourth Proportional to 1,128,556.77, 1,693,310.01 and 702,448.98
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Solution
The fourth proportional to 1,128,556.77, 1,693,310.01 and 702,448.98 is: 1,053,969.03
Step by Step Solution
- Step 1: Write the proportion equation
1,128,556.77 : 1,693,310.01 = 702,448.98 : x - Step 2: Convert to fraction form
1,128,556.77/1,693,310.01 = 702,448.98/x - Step 3: Cross multiply
1,128,556.77x = 1,693,310.01 × 702,448.98 - Step 4: Simplify right side
1,128,556.77x = 1,189,463,889,348.29 - Step 5: Solve for x
x = 1,189,463,889,348.29/1,128,556.77 - Step 6: Final answer
x = 1,053,969.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.