Finding the Fourth Proportional to 489,593.76, 675,258.48 and 354,135.84
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Solution
The fourth proportional to 489,593.76, 675,258.48 and 354,135.84 is: 488,431.94
Step by Step Solution
- Step 1: Write the proportion equation
489,593.76 : 675,258.48 = 354,135.84 : x - Step 2: Convert to fraction form
489,593.76/675,258.48 = 354,135.84/x - Step 3: Cross multiply
489,593.76x = 675,258.48 × 354,135.84 - Step 4: Simplify right side
489,593.76x = 239,133,229,031.92 - Step 5: Solve for x
x = 239,133,229,031.92/489,593.76 - Step 6: Final answer
x = 488,431.94
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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.