Finding the Fourth Proportional to 658,679.42, 908,965.76 and 372,193.32
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Solution
The fourth proportional to 658,679.42, 908,965.76 and 372,193.32 is: 513,620.09
Step by Step Solution
- Step 1: Write the proportion equation
658,679.42 : 908,965.76 = 372,193.32 : x - Step 2: Convert to fraction form
658,679.42/908,965.76 = 372,193.32/x - Step 3: Cross multiply
658,679.42x = 908,965.76 × 372,193.32 - Step 4: Simplify right side
658,679.42x = 338,310,983,980.72 - Step 5: Solve for x
x = 338,310,983,980.72/658,679.42 - Step 6: Final answer
x = 513,620.09
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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.