Finding the Fourth Proportional to 724,741.92, 1,000,110.36 and 402,472.44
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Solution
The fourth proportional to 724,741.92, 1,000,110.36 and 402,472.44 is: 555,393.37
Step by Step Solution
- Step 1: Write the proportion equation
724,741.92 : 1,000,110.36 = 402,472.44 : x - Step 2: Convert to fraction form
724,741.92/1,000,110.36 = 402,472.44/x - Step 3: Cross multiply
724,741.92x = 1,000,110.36 × 402,472.44 - Step 4: Simplify right side
724,741.92x = 402,516,856,858.48 - Step 5: Solve for x
x = 402,516,856,858.48/724,741.92 - Step 6: Final answer
x = 555,393.37
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1.5x scale
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.