Finding the Fourth Proportional to 724,809.92, 1,000,203.84 and 402,540.80
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Solution
The fourth proportional to 724,809.92, 1,000,203.84 and 402,540.80 is: 555,487.50
Step by Step Solution
- Step 1: Write the proportion equation
724,809.92 : 1,000,203.84 = 402,540.80 : x - Step 2: Convert to fraction form
724,809.92/1,000,203.84 = 402,540.80/x - Step 3: Cross multiply
724,809.92x = 1,000,203.84 × 402,540.80 - Step 4: Simplify right side
724,809.92x = 402,622,853,916.67 - Step 5: Solve for x
x = 402,622,853,916.67/724,809.92 - Step 6: Final answer
x = 555,487.50
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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.