Finding the Fourth Proportional to 744,612.66, 1,116,734.47 and 212,138.31
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Solution
The fourth proportional to 744,612.66, 1,116,734.47 and 212,138.31 is: 318,154.90
Step by Step Solution
- Step 1: Write the proportion equation
744,612.66 : 1,116,734.47 = 212,138.31 : x - Step 2: Convert to fraction form
744,612.66/1,116,734.47 = 212,138.31/x - Step 3: Cross multiply
744,612.66x = 1,116,734.47 × 212,138.31 - Step 4: Simplify right side
744,612.66x = 236,902,163,184.55 - Step 5: Solve for x
x = 236,902,163,184.55/744,612.66 - Step 6: Final answer
x = 318,154.90
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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.