Finding the Fourth Proportional to 879,446.20, 1,315,232.70 and 737,728.60
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Solution
The fourth proportional to 879,446.20, 1,315,232.70 and 737,728.60 is: 1,103,290.66
Step by Step Solution
- Step 1: Write the proportion equation
879,446.20 : 1,315,232.70 = 737,728.60 : x - Step 2: Convert to fraction form
879,446.20/1,315,232.70 = 737,728.60/x - Step 3: Cross multiply
879,446.20x = 1,315,232.70 × 737,728.60 - Step 4: Simplify right side
879,446.20x = 970,284,778,445.22 - Step 5: Solve for x
x = 970,284,778,445.22/879,446.20 - Step 6: Final answer
x = 1,103,290.66
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.