Finding the Fourth Proportional to 1,093,430.20, 1,640,145.30 and 1,051,439.80
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Solution
The fourth proportional to 1,093,430.20, 1,640,145.30 and 1,051,439.80 is: 1,577,159.70
Step by Step Solution
- Step 1: Write the proportion equation
1,093,430.20 : 1,640,145.30 = 1,051,439.80 : x - Step 2: Convert to fraction form
1,093,430.20/1,640,145.30 = 1,051,439.80/x - Step 3: Cross multiply
1,093,430.20x = 1,640,145.30 × 1,051,439.80 - Step 4: Simplify right side
1,093,430.20x = 1,724,514,046,202.94 - Step 5: Solve for x
x = 1,724,514,046,202.94/1,093,430.20 - Step 6: Final answer
x = 1,577,159.70
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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.