Finding the Fourth Proportional to 827,808.05, 1,142,687.30 and 483,756.05
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Solution
The fourth proportional to 827,808.05, 1,142,687.30 and 483,756.05 is: 667,765.78
Step by Step Solution
- Step 1: Write the proportion equation
827,808.05 : 1,142,687.30 = 483,756.05 : x - Step 2: Convert to fraction form
827,808.05/1,142,687.30 = 483,756.05/x - Step 3: Cross multiply
827,808.05x = 1,142,687.30 × 483,756.05 - Step 4: Simplify right side
827,808.05x = 552,781,891,364.62 - Step 5: Solve for x
x = 552,781,891,364.62/827,808.05 - Step 6: Final answer
x = 667,765.78
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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.