Finding the Fourth Proportional to 493,138.44, 680,536.62 and 278,281.08
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Solution
The fourth proportional to 493,138.44, 680,536.62 and 278,281.08 is: 384,031.04
Step by Step Solution
- Step 1: Write the proportion equation
493,138.44 : 680,536.62 = 278,281.08 : x - Step 2: Convert to fraction form
493,138.44/680,536.62 = 278,281.08/x - Step 3: Cross multiply
493,138.44x = 680,536.62 × 278,281.08 - Step 4: Simplify right side
493,138.44x = 189,380,465,593.15 - Step 5: Solve for x
x = 189,380,465,593.15/493,138.44 - Step 6: Final answer
x = 384,031.04
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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.