Finding the Fourth Proportional to 1,367,988.21, 2,052,202.82 and 421,358.49
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Solution
The fourth proportional to 1,367,988.21, 2,052,202.82 and 421,358.49 is: 632,105.65
Step by Step Solution
- Step 1: Write the proportion equation
1,367,988.21 : 2,052,202.82 = 421,358.49 : x - Step 2: Convert to fraction form
1,367,988.21/2,052,202.82 = 421,358.49/x - Step 3: Cross multiply
1,367,988.21x = 2,052,202.82 × 421,358.49 - Step 4: Simplify right side
1,367,988.21x = 864,713,079,302.15 - Step 5: Solve for x
x = 864,713,079,302.15/1,367,988.21 - Step 6: Final answer
x = 632,105.65
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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.