Finding the Fourth Proportional to 1,081,888.40, 1,622,359.16 and 513,432.42
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Solution
The fourth proportional to 1,081,888.40, 1,622,359.16 and 513,432.42 is: 769,923.95
Step by Step Solution
- Step 1: Write the proportion equation
1,081,888.40 : 1,622,359.16 = 513,432.42 : x - Step 2: Convert to fraction form
1,081,888.40/1,622,359.16 = 513,432.42/x - Step 3: Cross multiply
1,081,888.40x = 1,622,359.16 × 513,432.42 - Step 4: Simplify right side
1,081,888.40x = 832,971,789,627.97 - Step 5: Solve for x
x = 832,971,789,627.97/1,081,888.40 - Step 6: Final answer
x = 769,923.95
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1.5x scale
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.