Finding the Fourth Proportional to 3,488,091.81, 4,813,622.69 and 1,918,285.68
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Solution
The fourth proportional to 3,488,091.81, 4,813,622.69 and 1,918,285.68 is: 2,647,265.03
Step by Step Solution
- Step 1: Write the proportion equation
3,488,091.81 : 4,813,622.69 = 1,918,285.68 : x - Step 2: Convert to fraction form
3,488,091.81/4,813,622.69 = 1,918,285.68/x - Step 3: Cross multiply
3,488,091.81x = 4,813,622.69 × 1,918,285.68 - Step 4: Simplify right side
3,488,091.81x = 9,233,903,475,150.08 - Step 5: Solve for x
x = 9,233,903,475,150.08/3,488,091.81 - Step 6: Final answer
x = 2,647,265.03
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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.