Finding the Fourth Proportional to 2,790,450, 3,850,585.29 and 1,688,292.05
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Solution
The fourth proportional to 2,790,450, 3,850,585.29 and 1,688,292.05 is: 2,329,700.41
Step by Step Solution
- Step 1: Write the proportion equation
2,790,450 : 3,850,585.29 = 1,688,292.05 : x - Step 2: Convert to fraction form
2,790,450/3,850,585.29 = 1,688,292.05/x - Step 3: Cross multiply
2,790,450x = 3,850,585.29 × 1,688,292.05 - Step 4: Simplify right side
2,790,450x = 6,500,912,513,701.02 - Step 5: Solve for x
x = 6,500,912,513,701.02/2,790,450 - Step 6: Final answer
x = 2,329,700.41
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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.