Finding the Fourth Proportional to 493,021.92, 680,370.12 and 278,160.06
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Solution
The fourth proportional to 493,021.92, 680,370.12 and 278,160.06 is: 383,860.81
Step by Step Solution
- Step 1: Write the proportion equation
493,021.92 : 680,370.12 = 278,160.06 : x - Step 2: Convert to fraction form
493,021.92/680,370.12 = 278,160.06/x - Step 3: Cross multiply
493,021.92x = 680,370.12 × 278,160.06 - Step 4: Simplify right side
493,021.92x = 189,251,793,401.41 - Step 5: Solve for x
x = 189,251,793,401.41/493,021.92 - Step 6: Final answer
x = 383,860.81
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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.