Finding the Fourth Proportional to 2,639,181.97, 3,958,703.70 and 842,175.10
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Solution
The fourth proportional to 2,639,181.97, 3,958,703.70 and 842,175.10 is: 1,263,240.55
Step by Step Solution
- Step 1: Write the proportion equation
2,639,181.97 : 3,958,703.70 = 842,175.10 : x - Step 2: Convert to fraction form
2,639,181.97/3,958,703.70 = 842,175.10/x - Step 3: Cross multiply
2,639,181.97x = 3,958,703.70 × 842,175.10 - Step 4: Simplify right side
2,639,181.97x = 3,333,921,684,417.87 - Step 5: Solve for x
x = 3,333,921,684,417.87/2,639,181.97 - Step 6: Final answer
x = 1,263,240.55
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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.