Finding the Fourth Proportional to 1,216,183.06, 1,678,806.21 and 1,088,638.10
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Solution
The fourth proportional to 1,216,183.06, 1,678,806.21 and 1,088,638.10 is: 1,502,744.50
Step by Step Solution
- Step 1: Write the proportion equation
1,216,183.06 : 1,678,806.21 = 1,088,638.10 : x - Step 2: Convert to fraction form
1,216,183.06/1,678,806.21 = 1,088,638.10/x - Step 3: Cross multiply
1,216,183.06x = 1,678,806.21 × 1,088,638.10 - Step 4: Simplify right side
1,216,183.06x = 1,827,612,402,722.60 - Step 5: Solve for x
x = 1,827,612,402,722.60/1,216,183.06 - Step 6: Final answer
x = 1,502,744.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.