Finding the Fourth Proportional to 724,697.21, 1,086,708.30 and 268,971.08
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Solution
The fourth proportional to 724,697.21, 1,086,708.30 and 268,971.08 is: 403,331.35
Step by Step Solution
- Step 1: Write the proportion equation
724,697.21 : 1,086,708.30 = 268,971.08 : x - Step 2: Convert to fraction form
724,697.21/1,086,708.30 = 268,971.08/x - Step 3: Cross multiply
724,697.21x = 1,086,708.30 × 268,971.08 - Step 4: Simplify right side
724,697.21x = 292,293,099,662.42 - Step 5: Solve for x
x = 292,293,099,662.42/724,697.21 - Step 6: Final answer
x = 403,331.35
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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.