Finding the Fourth Proportional to 489,130.40, 733,695.60 and 445,827.80
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Solution
The fourth proportional to 489,130.40, 733,695.60 and 445,827.80 is: 668,741.70
Step by Step Solution
- Step 1: Write the proportion equation
489,130.40 : 733,695.60 = 445,827.80 : x - Step 2: Convert to fraction form
489,130.40/733,695.60 = 445,827.80/x - Step 3: Cross multiply
489,130.40x = 733,695.60 × 445,827.80 - Step 4: Simplify right side
489,130.40x = 327,101,895,217.68 - Step 5: Solve for x
x = 327,101,895,217.68/489,130.40 - Step 6: Final answer
x = 668,741.70
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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.