Finding the Fourth Proportional to 643,469.08, 888,029.40 and 371,548.44
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Solution
The fourth proportional to 643,469.08, 888,029.40 and 371,548.44 is: 512,761.14
Step by Step Solution
- Step 1: Write the proportion equation
643,469.08 : 888,029.40 = 371,548.44 : x - Step 2: Convert to fraction form
643,469.08/888,029.40 = 371,548.44/x - Step 3: Cross multiply
643,469.08x = 888,029.40 × 371,548.44 - Step 4: Simplify right side
643,469.08x = 329,945,938,244.14 - Step 5: Solve for x
x = 329,945,938,244.14/643,469.08 - Step 6: Final answer
x = 512,761.14
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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.