Finding the Fourth Proportional to 1,278,700.62, 1,764,598.12 and 705,740.84
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Solution
The fourth proportional to 1,278,700.62, 1,764,598.12 and 705,740.84 is: 973,917.54
Step by Step Solution
- Step 1: Write the proportion equation
1,278,700.62 : 1,764,598.12 = 705,740.84 : x - Step 2: Convert to fraction form
1,278,700.62/1,764,598.12 = 705,740.84/x - Step 3: Cross multiply
1,278,700.62x = 1,764,598.12 × 705,740.84 - Step 4: Simplify right side
1,278,700.62x = 1,245,348,959,471.22 - Step 5: Solve for x
x = 1,245,348,959,471.22/1,278,700.62 - Step 6: Final answer
x = 973,917.54
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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.