Finding the Fourth Proportional to 1,279,279.26, 1,765,432.94 and 706,355.73
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Solution
The fourth proportional to 1,279,279.26, 1,765,432.94 and 706,355.73 is: 974,786.12
Step by Step Solution
- Step 1: Write the proportion equation
1,279,279.26 : 1,765,432.94 = 706,355.73 : x - Step 2: Convert to fraction form
1,279,279.26/1,765,432.94 = 706,355.73/x - Step 3: Cross multiply
1,279,279.26x = 1,765,432.94 × 706,355.73 - Step 4: Simplify right side
1,279,279.26x = 1,247,023,669,567.97 - Step 5: Solve for x
x = 1,247,023,669,567.97/1,279,279.26 - Step 6: Final answer
x = 974,786.12
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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.