Finding the Fourth Proportional to 612,396.23, 918,630.09 and 185,945.96
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Solution
The fourth proportional to 612,396.23, 918,630.09 and 185,945.96 is: 278,929.80
Step by Step Solution
- Step 1: Write the proportion equation
612,396.23 : 918,630.09 = 185,945.96 : x - Step 2: Convert to fraction form
612,396.23/918,630.09 = 185,945.96/x - Step 3: Cross multiply
612,396.23x = 918,630.09 × 185,945.96 - Step 4: Simplify right side
612,396.23x = 170,815,556,266.51 - Step 5: Solve for x
x = 170,815,556,266.51/612,396.23 - Step 6: Final answer
x = 278,929.80
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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.