Finding the Fourth Proportional to 1,626,372.24, 2,439,678.06 and 428,286.12
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Solution
The fourth proportional to 1,626,372.24, 2,439,678.06 and 428,286.12 is: 642,460.70
Step by Step Solution
- Step 1: Write the proportion equation
1,626,372.24 : 2,439,678.06 = 428,286.12 : x - Step 2: Convert to fraction form
1,626,372.24/2,439,678.06 = 428,286.12/x - Step 3: Cross multiply
1,626,372.24x = 2,439,678.06 × 428,286.12 - Step 4: Simplify right side
1,626,372.24x = 1,044,880,250,366.53 - Step 5: Solve for x
x = 1,044,880,250,366.53/1,626,372.24 - Step 6: Final answer
x = 642,460.70
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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.