Finding the Fourth Proportional to 379,718.79, 523,765.04 and 243,537.03
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Solution
The fourth proportional to 379,718.79, 523,765.04 and 243,537.03 is: 335,922.76
Step by Step Solution
- Step 1: Write the proportion equation
379,718.79 : 523,765.04 = 243,537.03 : x - Step 2: Convert to fraction form
379,718.79/523,765.04 = 243,537.03/x - Step 3: Cross multiply
379,718.79x = 523,765.04 × 243,537.03 - Step 4: Simplify right side
379,718.79x = 127,556,181,041.75 - Step 5: Solve for x
x = 127,556,181,041.75/379,718.79 - Step 6: Final answer
x = 335,922.76
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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.