Finding the Fourth Proportional to 809,964.24, 1,216,194.84 and 685,243.44
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Solution
The fourth proportional to 809,964.24, 1,216,194.84 and 685,243.44 is: 1,028,921.40
Step by Step Solution
- Step 1: Write the proportion equation
809,964.24 : 1,216,194.84 = 685,243.44 : x - Step 2: Convert to fraction form
809,964.24/1,216,194.84 = 685,243.44/x - Step 3: Cross multiply
809,964.24x = 1,216,194.84 × 685,243.44 - Step 4: Simplify right side
809,964.24x = 833,389,535,871.85 - Step 5: Solve for x
x = 833,389,535,871.85/809,964.24 - Step 6: Final answer
x = 1,028,921.40
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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.