Finding the Fourth Proportional to 1,914,102.70, 2,641,647.87 and 1,429,827.09
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Solution
The fourth proportional to 1,914,102.70, 2,641,647.87 and 1,429,827.09 is: 1,973,300.43
Step by Step Solution
- Step 1: Write the proportion equation
1,914,102.70 : 2,641,647.87 = 1,429,827.09 : x - Step 2: Convert to fraction form
1,914,102.70/2,641,647.87 = 1,429,827.09/x - Step 3: Cross multiply
1,914,102.70x = 2,641,647.87 × 1,429,827.09 - Step 4: Simplify right side
1,914,102.70x = 3,777,099,686,766.80 - Step 5: Solve for x
x = 3,777,099,686,766.80/1,914,102.70 - Step 6: Final answer
x = 1,973,300.43
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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.