Finding the Fourth Proportional to 1,279,281.26, 1,765,435.70 and 706,357.73
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Solution
The fourth proportional to 1,279,281.26, 1,765,435.70 and 706,357.73 is: 974,788.89
Step by Step Solution
- Step 1: Write the proportion equation
1,279,281.26 : 1,765,435.70 = 706,357.73 : x - Step 2: Convert to fraction form
1,279,281.26/1,765,435.70 = 706,357.73/x - Step 3: Cross multiply
1,279,281.26x = 1,765,435.70 × 706,357.73 - Step 4: Simplify right side
1,279,281.26x = 1,247,029,153,512.96 - Step 5: Solve for x
x = 1,247,029,153,512.96/1,279,281.26 - Step 6: Final answer
x = 974,788.89
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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.