Finding the Fourth Proportional to 489,930.63, 676,086.93 and 275,079.75
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Solution
The fourth proportional to 489,930.63, 676,086.93 and 275,079.75 is: 379,600.32
Step by Step Solution
- Step 1: Write the proportion equation
489,930.63 : 676,086.93 = 275,079.75 : x - Step 2: Convert to fraction form
489,930.63/676,086.93 = 275,079.75/x - Step 3: Cross multiply
489,930.63x = 676,086.93 × 275,079.75 - Step 4: Simplify right side
489,930.63x = 185,977,823,682.67 - Step 5: Solve for x
x = 185,977,823,682.67/489,930.63 - Step 6: Final answer
x = 379,600.32
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1.5x scale
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.