Finding the Fourth Proportional to 1,991,351.27, 2,989,242.45 and 1,031,550.68
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Solution
The fourth proportional to 1,991,351.27, 2,989,242.45 and 1,031,550.68 is: 1,548,473.71
Step by Step Solution
- Step 1: Write the proportion equation
1,991,351.27 : 2,989,242.45 = 1,031,550.68 : x - Step 2: Convert to fraction form
1,991,351.27/2,989,242.45 = 1,031,550.68/x - Step 3: Cross multiply
1,991,351.27x = 2,989,242.45 × 1,031,550.68 - Step 4: Simplify right side
1,991,351.27x = 3,083,555,081,982.37 - Step 5: Solve for x
x = 3,083,555,081,982.37/1,991,351.27 - Step 6: Final answer
x = 1,548,473.71
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.