Finding the Fourth Proportional to 1,313,704.80, 1,967,446.80 and 890,690.40
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Solution
The fourth proportional to 1,313,704.80, 1,967,446.80 and 890,690.40 is: 1,333,926.75
Step by Step Solution
- Step 1: Write the proportion equation
1,313,704.80 : 1,967,446.80 = 890,690.40 : x - Step 2: Convert to fraction form
1,313,704.80/1,967,446.80 = 890,690.40/x - Step 3: Cross multiply
1,313,704.80x = 1,967,446.80 × 890,690.40 - Step 4: Simplify right side
1,313,704.80x = 1,752,385,977,270.72 - Step 5: Solve for x
x = 1,752,385,977,270.72/1,313,704.80 - Step 6: Final answer
x = 1,333,926.75
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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.