Finding the Fourth Proportional to 519,820.62, 780,041.97 and 477,519.18
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Solution
The fourth proportional to 519,820.62, 780,041.97 and 477,519.18 is: 716,564.50
Step by Step Solution
- Step 1: Write the proportion equation
519,820.62 : 780,041.97 = 477,519.18 : x - Step 2: Convert to fraction form
519,820.62/780,041.97 = 477,519.18/x - Step 3: Cross multiply
519,820.62x = 780,041.97 × 477,519.18 - Step 4: Simplify right side
519,820.62x = 372,485,001,879.99 - Step 5: Solve for x
x = 372,485,001,879.99/519,820.62 - Step 6: Final answer
x = 716,564.50
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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.