Finding the Fourth Proportional to 2,186,403.90, 3,017,217.36 and 1,206,351.96
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Solution
The fourth proportional to 2,186,403.90, 3,017,217.36 and 1,206,351.96 is: 1,664,754.66
Step by Step Solution
- Step 1: Write the proportion equation
2,186,403.90 : 3,017,217.36 = 1,206,351.96 : x - Step 2: Convert to fraction form
2,186,403.90/3,017,217.36 = 1,206,351.96/x - Step 3: Cross multiply
2,186,403.90x = 3,017,217.36 × 1,206,351.96 - Step 4: Simplify right side
2,186,403.90x = 3,639,826,069,191.28 - Step 5: Solve for x
x = 3,639,826,069,191.28/2,186,403.90 - Step 6: Final answer
x = 1,664,754.66
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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.