Finding the Fourth Proportional to 571,692.75, 788,937.12 and 313,571.80
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Solution
The fourth proportional to 571,692.75, 788,937.12 and 313,571.80 is: 432,729.70
Step by Step Solution
- Step 1: Write the proportion equation
571,692.75 : 788,937.12 = 313,571.80 : x - Step 2: Convert to fraction form
571,692.75/788,937.12 = 313,571.80/x - Step 3: Cross multiply
571,692.75x = 788,937.12 × 313,571.80 - Step 4: Simplify right side
571,692.75x = 247,388,432,805.22 - Step 5: Solve for x
x = 247,388,432,805.22/571,692.75 - Step 6: Final answer
x = 432,729.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.