Finding the Fourth Proportional to 839,682.21, 1,158,761.49 and 457,709.00
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Solution
The fourth proportional to 839,682.21, 1,158,761.49 and 457,709.00 is: 631,638.44
Step by Step Solution
- Step 1: Write the proportion equation
839,682.21 : 1,158,761.49 = 457,709.00 : x - Step 2: Convert to fraction form
839,682.21/1,158,761.49 = 457,709.00/x - Step 3: Cross multiply
839,682.21x = 1,158,761.49 × 457,709.00 - Step 4: Simplify right side
839,682.21x = 530,375,557,032.60 - Step 5: Solve for x
x = 530,375,557,032.60/839,682.21 - Step 6: Final answer
x = 631,638.44
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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.