Finding the Fourth Proportional to 726,986.64, 1,090,402.08 and 253,680.96
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Solution
The fourth proportional to 726,986.64, 1,090,402.08 and 253,680.96 is: 380,494.26
Step by Step Solution
- Step 1: Write the proportion equation
726,986.64 : 1,090,402.08 = 253,680.96 : x - Step 2: Convert to fraction form
726,986.64/1,090,402.08 = 253,680.96/x - Step 3: Cross multiply
726,986.64x = 1,090,402.08 × 253,680.96 - Step 4: Simplify right side
726,986.64x = 276,614,246,440.40 - Step 5: Solve for x
x = 276,614,246,440.40/726,986.64 - Step 6: Final answer
x = 380,494.26
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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.