Finding the Fourth Proportional to 489,140.40, 733,710.60 and 445,837.80
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Solution
The fourth proportional to 489,140.40, 733,710.60 and 445,837.80 is: 668,756.70
Step by Step Solution
- Step 1: Write the proportion equation
489,140.40 : 733,710.60 = 445,837.80 : x - Step 2: Convert to fraction form
489,140.40/733,710.60 = 445,837.80/x - Step 3: Cross multiply
489,140.40x = 733,710.60 × 445,837.80 - Step 4: Simplify right side
489,140.40x = 327,115,919,740.68 - Step 5: Solve for x
x = 327,115,919,740.68/489,140.40 - Step 6: Final answer
x = 668,756.70
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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.