Finding the Fourth Proportional to 489,221.40, 733,832.10 and 445,675.80
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Solution
The fourth proportional to 489,221.40, 733,832.10 and 445,675.80 is: 668,513.70
Step by Step Solution
- Step 1: Write the proportion equation
489,221.40 : 733,832.10 = 445,675.80 : x - Step 2: Convert to fraction form
489,221.40/733,832.10 = 445,675.80/x - Step 3: Cross multiply
489,221.40x = 733,832.10 × 445,675.80 - Step 4: Simplify right side
489,221.40x = 327,051,208,233.18 - Step 5: Solve for x
x = 327,051,208,233.18/489,221.40 - Step 6: Final answer
x = 668,513.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.