Finding the Fourth Proportional to 415,748.40, 623,622.60 and 411,811.80
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Solution
The fourth proportional to 415,748.40, 623,622.60 and 411,811.80 is: 617,717.70
Step by Step Solution
- Step 1: Write the proportion equation
415,748.40 : 623,622.60 = 411,811.80 : x - Step 2: Convert to fraction form
415,748.40/623,622.60 = 411,811.80/x - Step 3: Cross multiply
415,748.40x = 623,622.60 × 411,811.80 - Step 4: Simplify right side
415,748.40x = 256,815,145,426.68 - Step 5: Solve for x
x = 256,815,145,426.68/415,748.40 - Step 6: Final answer
x = 617,717.70
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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.