Finding the Fourth Proportional to 620,077.80, 930,116.70 and 305,149.80
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Solution
The fourth proportional to 620,077.80, 930,116.70 and 305,149.80 is: 457,724.70
Step by Step Solution
- Step 1: Write the proportion equation
620,077.80 : 930,116.70 = 305,149.80 : x - Step 2: Convert to fraction form
620,077.80/930,116.70 = 305,149.80/x - Step 3: Cross multiply
620,077.80x = 930,116.70 × 305,149.80 - Step 4: Simplify right side
620,077.80x = 283,824,924,981.66 - Step 5: Solve for x
x = 283,824,924,981.66/620,077.80 - Step 6: Final answer
x = 457,724.70
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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.