Finding the Fourth Proportional to 892,907.70, 1,232,221.86 and 485,017.49
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Solution
The fourth proportional to 892,907.70, 1,232,221.86 and 485,017.49 is: 669,329.15
Step by Step Solution
- Step 1: Write the proportion equation
892,907.70 : 1,232,221.86 = 485,017.49 : x - Step 2: Convert to fraction form
892,907.70/1,232,221.86 = 485,017.49/x - Step 3: Cross multiply
892,907.70x = 1,232,221.86 × 485,017.49 - Step 4: Simplify right side
892,907.70x = 597,649,147,499.22 - Step 5: Solve for x
x = 597,649,147,499.22/892,907.70 - Step 6: Final answer
x = 669,329.15
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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.