Finding the Fourth Proportional to 1,821,386.40, 2,732,212.20 and 699,455.40
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Solution
The fourth proportional to 1,821,386.40, 2,732,212.20 and 699,455.40 is: 1,049,234.02
Step by Step Solution
- Step 1: Write the proportion equation
1,821,386.40 : 2,732,212.20 = 699,455.40 : x - Step 2: Convert to fraction form
1,821,386.40/2,732,212.20 = 699,455.40/x - Step 3: Cross multiply
1,821,386.40x = 2,732,212.20 × 699,455.40 - Step 4: Simplify right side
1,821,386.40x = 1,911,060,577,235.88 - Step 5: Solve for x
x = 1,911,060,577,235.88/1,821,386.40 - Step 6: Final answer
x = 1,049,234.02
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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.