Finding the Fourth Proportional to 513,110.20, 769,665.30 and 488,615.80
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Solution
The fourth proportional to 513,110.20, 769,665.30 and 488,615.80 is: 732,923.70
Step by Step Solution
- Step 1: Write the proportion equation
513,110.20 : 769,665.30 = 488,615.80 : x - Step 2: Convert to fraction form
513,110.20/769,665.30 = 488,615.80/x - Step 3: Cross multiply
513,110.20x = 769,665.30 × 488,615.80 - Step 4: Simplify right side
513,110.20x = 376,070,626,291.74 - Step 5: Solve for x
x = 376,070,626,291.74/513,110.20 - Step 6: Final answer
x = 732,923.70
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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.