Finding the Fourth Proportional to 1,278,995.19, 1,765,013.67 and 706,035.75
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Solution
The fourth proportional to 1,278,995.19, 1,765,013.67 and 706,035.75 is: 974,329.50
Step by Step Solution
- Step 1: Write the proportion equation
1,278,995.19 : 1,765,013.67 = 706,035.75 : x - Step 2: Convert to fraction form
1,278,995.19/1,765,013.67 = 706,035.75/x - Step 3: Cross multiply
1,278,995.19x = 1,765,013.67 × 706,035.75 - Step 4: Simplify right side
1,278,995.19x = 1,246,162,750,258.70 - Step 5: Solve for x
x = 1,246,162,750,258.70/1,278,995.19 - Step 6: Final answer
x = 974,329.50
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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.