Finding the Fourth Proportional to 513,611.28, 770,637.48 and 198,289.62
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Solution
The fourth proportional to 513,611.28, 770,637.48 and 198,289.62 is: 297,519.58
Step by Step Solution
- Step 1: Write the proportion equation
513,611.28 : 770,637.48 = 198,289.62 : x - Step 2: Convert to fraction form
513,611.28/770,637.48 = 198,289.62/x - Step 3: Cross multiply
513,611.28x = 770,637.48 × 198,289.62 - Step 4: Simplify right side
513,611.28x = 152,809,413,066.96 - Step 5: Solve for x
x = 152,809,413,066.96/513,611.28 - Step 6: Final answer
x = 297,519.58
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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.