Finding the Fourth Proportional to 489,765.29, 675,853.35 and 271,987.79
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Solution
The fourth proportional to 489,765.29, 675,853.35 and 271,987.79 is: 375,330.52
Step by Step Solution
- Step 1: Write the proportion equation
489,765.29 : 675,853.35 = 271,987.79 : x - Step 2: Convert to fraction form
489,765.29/675,853.35 = 271,987.79/x - Step 3: Cross multiply
489,765.29x = 675,853.35 × 271,987.79 - Step 4: Simplify right side
489,765.29x = 183,823,859,030.60 - Step 5: Solve for x
x = 183,823,859,030.60/489,765.29 - Step 6: Final answer
x = 375,330.52
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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.