Finding the Fourth Proportional to 1,206,870.20, 1,805,639.70 and 786,966.20
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Solution
The fourth proportional to 1,206,870.20, 1,805,639.70 and 786,966.20 is: 1,177,406.99
Step by Step Solution
- Step 1: Write the proportion equation
1,206,870.20 : 1,805,639.70 = 786,966.20 : x - Step 2: Convert to fraction form
1,206,870.20/1,805,639.70 = 786,966.20/x - Step 3: Cross multiply
1,206,870.20x = 1,805,639.70 × 786,966.20 - Step 4: Simplify right side
1,206,870.20x = 1,420,977,413,278.14 - Step 5: Solve for x
x = 1,420,977,413,278.14/1,206,870.20 - Step 6: Final answer
x = 1,177,406.99
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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.