Finding the Fourth Proportional to 612,927.25, 919,394.97 and 213,575.65
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Solution
The fourth proportional to 612,927.25, 919,394.97 and 213,575.65 is: 320,364.90
Step by Step Solution
- Step 1: Write the proportion equation
612,927.25 : 919,394.97 = 213,575.65 : x - Step 2: Convert to fraction form
612,927.25/919,394.97 = 213,575.65/x - Step 3: Cross multiply
612,927.25x = 919,394.97 × 213,575.65 - Step 4: Simplify right side
612,927.25x = 196,360,378,324.48 - Step 5: Solve for x
x = 196,360,378,324.48/612,927.25 - Step 6: Final answer
x = 320,364.90
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1.5x scale
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.