Finding the Fourth Proportional to 415,352.40, 623,028.60 and 411,415.80
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Solution
The fourth proportional to 415,352.40, 623,028.60 and 411,415.80 is: 617,123.70
Step by Step Solution
- Step 1: Write the proportion equation
415,352.40 : 623,028.60 = 411,415.80 : x - Step 2: Convert to fraction form
415,352.40/623,028.60 = 411,415.80/x - Step 3: Cross multiply
415,352.40x = 623,028.60 × 411,415.80 - Step 4: Simplify right side
415,352.40x = 256,323,809,891.88 - Step 5: Solve for x
x = 256,323,809,891.88/415,352.40 - Step 6: Final answer
x = 617,123.70
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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.