Finding the Fourth Proportional to 839,934.20, 1,263,011.70 and 703,076.60
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Solution
The fourth proportional to 839,934.20, 1,263,011.70 and 703,076.60 is: 1,057,218.50
Step by Step Solution
- Step 1: Write the proportion equation
839,934.20 : 1,263,011.70 = 703,076.60 : x - Step 2: Convert to fraction form
839,934.20/1,263,011.70 = 703,076.60/x - Step 3: Cross multiply
839,934.20x = 1,263,011.70 × 703,076.60 - Step 4: Simplify right side
839,934.20x = 887,993,971,796.22 - Step 5: Solve for x
x = 887,993,971,796.22/839,934.20 - Step 6: Final answer
x = 1,057,218.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.