Finding the Fourth Proportional to 460,432.60, 690,125.17 and 280,120.55
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Solution
The fourth proportional to 460,432.60, 690,125.17 and 280,120.55 is: 419,862.20
Step by Step Solution
- Step 1: Write the proportion equation
460,432.60 : 690,125.17 = 280,120.55 : x - Step 2: Convert to fraction form
460,432.60/690,125.17 = 280,120.55/x - Step 3: Cross multiply
460,432.60x = 690,125.17 × 280,120.55 - Step 4: Simplify right side
460,432.60x = 193,318,242,189.24 - Step 5: Solve for x
x = 193,318,242,189.24/460,432.60 - Step 6: Final answer
x = 419,862.20
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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.