Finding the Fourth Proportional to 489,523.96, 675,554.70 and 274,679.91
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Solution
The fourth proportional to 489,523.96, 675,554.70 and 274,679.91 is: 379,064.81
Step by Step Solution
- Step 1: Write the proportion equation
489,523.96 : 675,554.70 = 274,679.91 : x - Step 2: Convert to fraction form
489,523.96/675,554.70 = 274,679.91/x - Step 3: Cross multiply
489,523.96x = 675,554.70 × 274,679.91 - Step 4: Simplify right side
489,523.96x = 185,561,303,681.05 - Step 5: Solve for x
x = 185,561,303,681.05/489,523.96 - Step 6: Final answer
x = 379,064.81
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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.