Finding the Fourth Proportional to 856,692.20, 1,182,235.45 and 469,522.99
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Solution
The fourth proportional to 856,692.20, 1,182,235.45 and 469,522.99 is: 647,941.84
Step by Step Solution
- Step 1: Write the proportion equation
856,692.20 : 1,182,235.45 = 469,522.99 : x - Step 2: Convert to fraction form
856,692.20/1,182,235.45 = 469,522.99/x - Step 3: Cross multiply
856,692.20x = 1,182,235.45 × 469,522.99 - Step 4: Simplify right side
856,692.20x = 555,086,723,368.00 - Step 5: Solve for x
x = 555,086,723,368.00/856,692.20 - Step 6: Final answer
x = 647,941.84
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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.