Finding the Fourth Proportional to 1,279,189.09, 1,765,283.57 and 706,230.37
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Solution
The fourth proportional to 1,279,189.09, 1,765,283.57 and 706,230.37 is: 974,599.36
Step by Step Solution
- Step 1: Write the proportion equation
1,279,189.09 : 1,765,283.57 = 706,230.37 : x - Step 2: Convert to fraction form
1,279,189.09/1,765,283.57 = 706,230.37/x - Step 3: Cross multiply
1,279,189.09x = 1,765,283.57 × 706,230.37 - Step 4: Simplify right side
1,279,189.09x = 1,246,696,868,796.02 - Step 5: Solve for x
x = 1,246,696,868,796.02/1,279,189.09 - Step 6: Final answer
x = 974,599.36
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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.